<?xml version="1.0" encoding="utf-8"?>
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  <!-- This file was generated by the Style Variant Builder <https://github.com/citation-style-language/style-variant-builder>. To contribute changes, modify the template and regenerate variants. -->
  <info>
    <title>APA Style 7th edition</title>
    <title-short>Publication Manual of the American Psychological Association, with Bluebook</title-short>
    <id>http://www.zotero.org/styles/apa</id>
    <link href="http://www.zotero.org/styles/apa" rel="self"/>
    <link href="http://www.zotero.org/styles/apa-6th-edition" rel="template"/>
    <link href="https://apastyle.apa.org/style-grammar-guidelines/references" rel="documentation"/>
    <link href="https://zotero.org/groups/2205533/collections/MR2N872S" rel="documentation"/>
    <author>
      <name>Brenton M. Wiernik</name>
      <email>zotero@wiernik.org</email>
      <uri>https://orcid.org/0000-0001-9560-6336</uri>
    </author>
    <author>
      <name>Andrew Dunning</name>
      <uri>https://orcid.org/0000-0003-0464-5036</uri>
    </author>
    <category citation-format="author-date"/>
    <category field="anthropology"/>
    <category field="communications"/>
    <category field="generic-base"/>
    <category field="law"/>
    <category field="medicine"/>
    <category field="psychology"/>
    <category field="social_science"/>
    <category field="sociology"/>
    <summary>Author-date system of the Publication Manual of the American Psychological Association (2020)</summary>
    <updated>2026-02-14T01:18:34+00:00</updated>
    <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
  </info>
  <locale xml:lang="en">
    <terms>
      <term name="ad"> C.E.</term>
      <term name="bc"> B.C.E.</term>
      <term form="short" name="circa">ca.</term>
      <term name="guest">
        <single>guest expert</single>
        <multiple>guest experts</multiple>
      </term>
      <term form="short" name="illustrator">illus.</term>
      <term form="short" name="interviewer">
        <single>interviewer</single>
        <multiple>interviewers</multiple>
      </term>
      <term form="short" name="legislation">Pub. L.</term>
      <term name="manuscript">unpublished manuscript</term>
      <term form="verb" name="performer">recorded by</term>
      <term name="post">online post</term>
      <term name="review-of">review of the</term>
      <term form="short" name="review-of">review of</term>
      <term name="software">computer software</term>
      <term form="short" name="supplement">
        <single>suppl.</single>
        <multiple>suppls.</multiple>
      </term>
    </terms>
  </locale>
  <locale xml:lang="da">
    <terms>
      <term name="et-al">et al.</term>
    </terms>
  </locale>
  <locale xml:lang="de">
    <terms>
      <term name="et-al">et al.</term>
    </terms>
  </locale>
  <locale xml:lang="es">
    <terms>
      <term name="from">de</term>
    </terms>
  </locale>
  <locale xml:lang="fr">
    <terms>
      <term form="short" name="editor">
        <single>éd.</single>
        <multiple>éds.</multiple>
      </term>
    </terms>
  </locale>
  <locale xml:lang="nb">
    <terms>
      <term name="et-al">et al.</term>
    </terms>
  </locale>
  <locale xml:lang="nl">
    <terms>
      <term name="et-al">et al.</term>
    </terms>
  </locale>
  <locale xml:lang="nn">
    <terms>
      <term name="et-al">et al.</term>
    </terms>
  </locale>
  <locale xml:lang="pl">
    <terms>
      <term name="et-al">i in.</term>
    </terms>
  </locale>
  <locale xml:lang="ro">
    <terms>
      <term name="et-al">et al.</term>
    </terms>
  </locale>
  <!-- Contents:

       APA uses four main reference elements:

        1. Author (APA 9.7-12)
        2. Date (APA 9.13-17)
        3. Title and descriptions (APA 9.18-22)
            3.1. Title (APA 9.18)
            3.2. Identifier (in parentheses) (APA 9.19)
            3.3. Description [in square brackets] (APA 9.21-22)
        4. Source (APA 9.23-37)
            4.1. Serial sources (APA 9.25-27)
            4.2. Monographic sources (APA 9.28)
            4.3. Publisher sources (APA 9.29)
            4.4. Database and archive sources (APA 9.30)
            4.5. Works with specific locations (APA 9.31)
            4.6. Social media and website sources (APA 9.32-33)
            4.7. DOI or URL (APA 9.34-36)

       A note on the source may follow the main reference elements:

        5. Publication history (APA 9.39-41)

       APA also provides parallel rules for legal references following The Bluebook: A Uniform System of Citation (chap. 11):

        6. Legal references
  -->
  <!-- APA categorizes all sources as serial (APA 9.25-27) or monographic (APA 9.28).

       Serial
       : article-journal article-magazine article-newspaper periodical post-weblog review review-book

       Serial or Monographic
       : interview paper-conference

         Monographic with any of `collection-editor compiler editor editorial-director`.
         A serial `paper-conference` is unpublished if it lacks any of `issue page supplement-number volume`.

       Monographic
       : article book broadcast chapter classic collection dataset document entry entry-dictionary entry-encyclopedia event figure graphic manuscript map motion_picture musical_score pamphlet patent performance personal_communication post report software song speech standard thesis webpage

       Legal
       : bill hearing legal_case legislation regulation treaty
  -->
  <!-- Equivalencies:

       `classic` == `book`
       `document` == `report` (but give full date)
       `standard` == `report`
       `performance` == `speech`
       `event` == `speech`
  -->
  <!-- Role equivalencies:

       `compiler` == `editor`
       `organizer`, `curator` == `chair`
       `script-writer` == `director`
       `producer` == `director` (but don't print both)
       `guest`, `host` == `director`
       `series-creator`, `executive-producer` == `editor`
  -->
  <!-- Reviews are detected if an item has type `review` or `review-book` or if it has any of the variables `reviewed-title`, `reviewed-author`, or `reviewed-genre`. For the latter case, reviews are commonly stored as types `article-journal`, `article-magazine`, `article-newspaper`, `post-weblog`, or `webpage`. -->
  <!-- Indigeneous knowledge: Assume the item is stored as `document` or `speech` and that Nation/Community, treaty territory, where the Elder lives, and topic are all stored in `title`. Cf. <https://libguides.norquest.ca/c.php?g=314831&p=5188823>. If the item is stored as `interview`, assume that Nation/Community, treaty territory, and topic are stored in `title`. 'Oral teaching' or similar is stored in `archive`, and where the Elder lives is stored in `archive-place`. -->
  <!-- Variable labels -->
  <macro name="label-chapter-number">
    <group delimiter=" ">
      <choose>
        <if is-numeric="chapter-number" type="song">
          <text text-case="capitalize-first" value="track"/>
        </if>
        <else-if is-numeric="chapter-number">
          <label text-case="capitalize-first" variable="chapter-number"/>
        </else-if>
      </choose>
      <text variable="chapter-number"/>
    </group>
  </macro>
  <macro name="label-edition">
    <group delimiter=" ">
      <choose>
        <if is-numeric="edition">
          <number form="ordinal" variable="edition"/>
          <label form="short" variable="edition"/>
        </if>
        <else>
          <text variable="edition"/>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="label-issue">
    <group delimiter=" ">
      <label text-case="capitalize-first" variable="issue"/>
      <text variable="issue"/>
    </group>
  </macro>
  <macro name="label-locator">
    <!-- Abbreviate page and paragraph; leave other locator labels in long form (APA 8.13) -->
    <group delimiter=" ">
      <choose>
        <if locator="page">
          <label form="short" variable="locator"/>
        </if>
        <else-if match="any" type="bill hearing legal_case legislation regulation treaty">
          <!-- Bluebook-style labels for legal types -->
          <choose>
            <if locator="chapter paragraph section" match="any">
              <label form="symbol" variable="locator"/>
            </if>
            <else>
              <label text-case="capitalize-first" variable="locator"/>
            </else>
          </choose>
        </else-if>
        <else-if locator="paragraph">
          <label form="short" variable="locator"/>
        </else-if>
        <else-if is-numeric="locator">
          <label text-case="capitalize-first" variable="locator"/>
        </else-if>
        <!-- a non-numeric canonical reference is identified by its formatting and does not need a label, similar to a timestamp -->
        <else-if locator="chapter line verse" match="any"/>
        <else>
          <label text-case="capitalize-first" variable="locator"/>
        </else>
      </choose>
      <text variable="locator"/>
    </group>
  </macro>
  <macro name="label-number">
    <group delimiter=" ">
      <choose>
        <if type="standard"/>
        <else-if is-numeric="number" match="any" type="legislation patent regulation">
          <label form="short" text-case="capitalize-first" variable="number"/>
        </else-if>
      </choose>
      <text text-case="capitalize-first" variable="number"/>
    </group>
  </macro>
  <macro name="label-number-capitalized">
    <!-- alias for cross-compatibility of Bluebook macros -->
    <text macro="label-number"/>
  </macro>
  <macro name="label-number-article">
    <!-- APA example 6: Journal article with article number or eLocator -->
    <group delimiter=" ">
      <text term="article-locator" text-case="capitalize-first"/>
      <text variable="number"/>
    </group>
  </macro>
  <macro name="label-number-of-volumes">
    <group delimiter=" ">
      <choose>
        <if is-numeric="number-of-volumes">
          <label form="short" text-case="capitalize-first" variable="number-of-volumes"/>
          <group>
            <text prefix="1" term="page-range-delimiter"/>
            <number variable="number-of-volumes"/>
          </group>
        </if>
        <else>
          <text variable="number-of-volumes"/>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="label-page">
    <group delimiter=" ">
      <label form="short" variable="page"/>
      <text variable="page"/>
    </group>
  </macro>
  <macro name="label-part-number">
    <group delimiter=" ">
      <choose>
        <if is-numeric="part-number">
          <!-- TODO: Replace with `part-number` label when CSL provides one -->
          <text form="short" term="part" text-case="capitalize-first"/>
        </if>
      </choose>
      <text text-case="capitalize-first" variable="part-number"/>
    </group>
  </macro>
  <macro name="label-section-symbol">
    <group delimiter=" ">
      <label form="symbol" variable="section"/>
      <text variable="section"/>
    </group>
  </macro>
  <macro name="label-supplement-number">
    <group delimiter=" ">
      <choose>
        <if is-numeric="supplement-number">
          <!-- TODO: Replace with `supplement-number` label when CSL provides one -->
          <text form="short" term="supplement" text-case="capitalize-first"/>
        </if>
      </choose>
      <text text-case="capitalize-first" variable="supplement-number"/>
    </group>
  </macro>
  <macro name="label-version">
    <group delimiter=" ">
      <label text-case="capitalize-first" variable="version"/>
      <text variable="version"/>
    </group>
  </macro>
  <macro name="label-volume">
    <group delimiter=" ">
      <choose>
        <if is-numeric="volume">
          <label form="short" text-case="capitalize-first" variable="volume"/>
        </if>
      </choose>
      <text text-case="capitalize-first" variable="volume"/>
    </group>
  </macro>
  <!-- 1. Author (APA 9.7-12) -->
  <macro name="author">
    <!-- Substitutes for missing authors: order prioritizes primary creators (e.g., composer, author) over secondary roles (e.g., editor, curator), with title as the final fallback. -->
    <names variable="composer">
      <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
      <label form="short" prefix=" (" suffix=")" text-case="title"/>
      <substitute>
        <names variable="author"/>
        <!-- `narrator` only cited in `identifier-contributors` -->
        <names variable="illustrator"/>
        <choose>
          <if type="broadcast">
            <names variable="script-writer director">
              <!-- Actors/performers and producers [not executive] not cited in APA style. -->
              <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
              <label prefix=" (" suffix=")" text-case="title"/>
            </names>
          </if>
        </choose>
        <names variable="director">
          <!-- For non-broadcast items, APA only cites directors and not writers. -->
          <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
          <label prefix=" (" suffix=")" text-case="title"/>
        </names>
        <names variable="guest host">
          <!-- TODO: Collapse variables when that becomes available. -->
          <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
          <label prefix=" (" suffix=")" text-case="title"/>
        </names>
        <names variable="producer">
          <!-- Producers not cited if there is a writer/director, but use if they are the principal creator. -->
          <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
          <label prefix=" (" suffix=")" text-case="title"/>
        </names>
        <choose>
          <if match="any" type="entry-dictionary entry-encyclopedia">
            <text variable="publisher"/>
          </if>
        </choose>
        <choose>
          <if match="none" variable="container-title"/>
          <else-if match="any" type="book classic entry entry-dictionary entry-encyclopedia">
            <!-- Items with a monographic `container-title` substitute their title and identifier, but leave description after `container-title`. This mimics the `source-monographic` macro. -->
            <text macro="author-title-substitute"/>
          </else-if>
        </choose>
        <names variable="executive-producer">
          <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
          <label prefix=" (" suffix=")" text-case="title"/>
        </names>
        <names variable="series-creator">
          <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
          <label prefix=" (" suffix=")" text-case="title"/>
        </names>
        <names variable="editor-translator"/>
        <!-- `translator` is not cited as a primary creator (only as Ed. & Trans.). -->
        <names variable="editor"/>
        <names variable="editorial-director"/>
        <names variable="compiler">
          <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
          <label prefix=" (" suffix=")" text-case="title"/>
        </names>
        <choose>
          <if match="any" type="event performance speech">
            <names variable="chair">
              <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
              <label prefix=" (" suffix=")" text-case="title"/>
            </names>
            <names variable="organizer">
              <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
              <label prefix=" (" suffix=")" text-case="title"/>
            </names>
          </if>
        </choose>
        <names variable="curator">
          <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
          <label prefix=" (" suffix=")" text-case="title"/>
        </names>
        <names variable="collection-editor"/>
        <choose>
          <if match="any" type="software webpage">
            <!-- `software` (APA 10.10) and `webpage` (APA 10.16) can be cited under "name of group": likely in `publisher` if no `author` -->
            <text variable="publisher"/>
          </if>
          <else-if type="standard">
            <text variable="authority"/>
          </else-if>
        </choose>
        <text macro="author-title-substitute"/>
      </substitute>
    </names>
  </macro>
  <macro name="author-and-contributors">
    <group delimiter=" ">
      <text macro="author"/>
      <choose>
        <!-- add nonprimary authors equivalent to those appearing "on a book cover"; do not modify the in-text citation (APA 9.8) -->
        <if match="none" variable="author compiler composer editor editor-translator illustrator"/>
        <else-if match="any" type="book musical_score pamphlet report standard">
          <names prefix="(" suffix=")" variable="contributor">
            <label form="verb" suffix=" "/>
            <name and="symbol" delimiter-precedes-last="always" name-as-sort-order="all"/>
          </names>
        </else-if>
      </choose>
    </group>
  </macro>
  <macro name="author-short">
    <choose>
      <if match="any" type="bill hearing legal_case legislation regulation treaty">
        <text macro="title-and-descriptions-short"/>
      </if>
      <else-if match="any" type="interview personal_communication">
        <choose>
          <!-- These variables indicate that the letter is retrievable by the reader. If not, use the APA in-text-only personal communication format. -->
          <if match="any" variable="archive archive-place container-title DOI number publisher references URL">
            <names variable="author">
              <name and="symbol" form="short"/>
              <substitute>
                <text macro="title-and-descriptions-short"/>
              </substitute>
            </names>
          </if>
          <else>
            <group delimiter=", ">
              <names variable="author">
                <name and="symbol"/>
                <substitute>
                  <text macro="title-and-descriptions-short"/>
                </substitute>
              </names>
              <text term="personal-communication"/>
            </group>
          </else>
        </choose>
      </else-if>
      <else>
        <names variable="composer">
          <name and="symbol" form="short"/>
          <substitute>
            <names variable="author"/>
            <names variable="illustrator"/>
            <choose>
              <if type="broadcast">
                <!-- TODO: Collapse variables when that becomes available. -->
                <!-- Ideally combine as `script-writer director` -->
                <names variable="script-writer"/>
              </if>
            </choose>
            <names variable="director"/>
            <!-- TODO: Collapse variables when that becomes available. -->
            <names variable="guest host"/>
            <names variable="producer"/>
            <choose>
              <if match="any" type="entry-dictionary entry-encyclopedia">
                <text variable="publisher"/>
              </if>
            </choose>
            <choose>
              <if match="none" variable="container-title"/>
              <else-if match="any" type="book classic entry entry-dictionary entry-encyclopedia">
                <text macro="title-and-descriptions-short"/>
              </else-if>
            </choose>
            <names variable="executive-producer"/>
            <names variable="series-creator"/>
            <names variable="editor"/>
            <names variable="editorial-director"/>
            <names variable="compiler"/>
            <choose>
              <if match="any" type="event performance speech">
                <names variable="chair"/>
                <names variable="organizer"/>
              </if>
            </choose>
            <names variable="curator"/>
            <names variable="collection-editor"/>
            <choose>
              <if match="any" type="software webpage">
                <!-- `software` (APA 10.10) and `webpage` (APA 10.16) can be cited under "name of group": likely in `publisher` if no `author` -->
                <text form="short" variable="publisher"/>
              </if>
              <else-if type="standard">
                <text form="short" variable="authority"/>
              </else-if>
            </choose>
            <text macro="title-and-descriptions-short"/>
          </substitute>
        </names>
      </else>
    </choose>
  </macro>
  <macro name="author-sort">
    <choose>
      <if match="any" type="bill hearing legal_case legislation regulation treaty">
        <text macro="legal-title"/>
      </if>
      <else>
        <text macro="author"/>
      </else>
    </choose>
  </macro>
  <!-- Author elements -->
  <macro name="author-title-substitute">
    <choose>
      <if match="any" type="review review-book" variable="reviewed-author reviewed-genre reviewed-title">
        <!-- `title` is only the review title if there is a separate `reviewed-genre` or `reviewed-title`; otherwise, it is the title of the reviewed work, printed in the description -->
        <choose>
          <if variable="reviewed-genre title">
            <text macro="title"/>
          </if>
          <else-if variable="reviewed-title title">
            <text macro="title"/>
          </else-if>
          <else>
            <text macro="title-and-descriptions"/>
          </else>
        </choose>
      </if>
      <else-if variable="title">
        <!-- If an item has a `title`, substitute missing author with title and identifier, but leave description after the date (in the title position). -->
        <group delimiter=" ">
          <text macro="title"/>
          <text macro="identifier"/>
        </group>
      </else-if>
      <else>
        <!-- If an item has no `title`, substitute with descriptions. -->
        <text macro="title-and-descriptions"/>
      </else>
    </choose>
  </macro>
  <!-- 2. Date (APA 9.13-17) -->
  <macro name="date">
    <!-- Full dates included for ephemeral sources (e.g. broadcasts, interviews) to provide maximum specificity, while books use year only. -->
    <group delimiter="-" prefix="(" suffix=")">
      <choose>
        <if variable="issued">
          <group delimiter=", ">
            <group>
              <text macro="date-issued-year"/>
              <text variable="year-suffix"/>
            </group>
            <choose>
              <if match="any" type="article-magazine article-newspaper broadcast collection document event motion_picture pamphlet performance personal_communication post post-weblog song speech webpage">
                <!-- Many video and audio examples in manual give full dates. Err on the side of too much information. -->
                <text macro="date-issued-month-day"/>
              </if>
              <!-- Only show the month and day for an unpublished `interview` or `paper-conference` -->
              <else-if match="any" variable="collection-editor compiler editor editorial-director issue page supplement-number volume"/>
              <else-if match="any" type="interview paper-conference">
                <text macro="date-issued-month-day"/>
              </else-if>
              <!-- Only year: article article-journal book chapter classic entry entry-dictionary entry-encyclopedia dataset figure graphic manuscript map musical_score paper-conference[published] patent periodical report review review-book software standard thesis -->
            </choose>
          </group>
        </if>
        <else-if variable="status">
          <!-- Print the status variable rather than use generic CSL terms (`in press`, etc.) -->
          <text text-case="lowercase" variable="status"/>
          <text variable="year-suffix"/>
        </else-if>
        <else>
          <text form="short" term="no date"/>
          <text variable="year-suffix"/>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="date-short">
    <group delimiter="-">
      <choose>
        <if variable="issued">
          <group delimiter="/">
            <text macro="date-original-year"/>
            <group>
              <choose>
                <if match="any" variable="archive archive-place container-title DOI number publisher references URL">
                  <text macro="date-issued-year"/>
                </if>
                <else-if match="any" type="interview personal_communication">
                  <!-- use the in-text-only format for inaccessible personal communications -->
                  <text macro="date-issued-full"/>
                </else-if>
                <else>
                  <text macro="date-issued-year"/>
                </else>
              </choose>
              <text variable="year-suffix"/>
            </group>
          </group>
        </if>
        <else-if variable="status">
          <!-- Print the status variable rather than use generic CSL terms (`in press`, etc.) -->
          <text text-case="lowercase" variable="status"/>
          <text variable="year-suffix"/>
        </else-if>
        <else>
          <text form="short" term="no date"/>
          <text variable="year-suffix"/>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="date-sort">
    <!-- Sort items by issue date as printed -->
    <choose>
      <if match="any" type="article article-journal book chapter entry entry-dictionary entry-encyclopedia dataset figure graphic manuscript map musical_score patent report review review-book thesis">
        <date date-parts="year" form="numeric" variable="issued"/>
      </if>
      <else-if type="paper-conference">
        <!-- Determine whether published and serial or monographic -->
        <choose>
          <if match="any" variable="collection-editor compiler editor editorial-director issue page supplement-number volume">
            <date date-parts="year" form="numeric" variable="issued"/>
          </if>
          <else>
            <text macro="date-issued-leading-zeros"/>
          </else>
        </choose>
      </else-if>
      <else>
        <text macro="date-issued-leading-zeros"/>
      </else>
    </choose>
  </macro>
  <macro name="date-sort-group">
    <!-- Sorts items with and without dates:

          1. `no date` items (= 0)
          2. items with dates (= 1)
          3. items with `status` (forthcoming, in press, etc.) (= 2) -->
    <choose>
      <if variable="issued">
        <text value="1"/>
      </if>
      <else-if variable="status">
        <text value="2"/>
      </else-if>
      <else>
        <text value="0"/>
      </else>
    </choose>
  </macro>
  <!-- Date elements -->
  <macro name="date-event-full">
    <group delimiter=" ">
      <choose>
        <if is-uncertain-date="event-date">
          <text form="short" term="circa"/>
        </if>
      </choose>
      <date form="text" variable="event-date"/>
    </group>
  </macro>
  <macro name="date-issued-full">
    <group delimiter=" ">
      <choose>
        <if is-uncertain-date="issued">
          <text form="short" term="circa"/>
        </if>
      </choose>
      <date form="text" variable="issued"/>
    </group>
  </macro>
  <macro name="date-issued-leading-zeros">
    <date delimiter="-" variable="issued">
      <date-part name="year"/>
      <date-part form="numeric-leading-zeros" name="month"/>
      <date-part form="numeric-leading-zeros" name="day"/>
    </date>
  </macro>
  <macro name="date-issued-month-day">
    <date variable="issued">
      <date-part name="month"/>
      <date-part name="day" prefix=" "/>
    </date>
  </macro>
  <macro name="date-issued-year">
    <group delimiter=" ">
      <choose>
        <if is-uncertain-date="issued">
          <text form="short" term="circa"/>
        </if>
      </choose>
      <date date-parts="year" form="numeric" variable="issued"/>
    </group>
  </macro>
  <macro name="date-original-year">
    <group delimiter=" ">
      <choose>
        <if is-uncertain-date="original-date">
          <text form="short" term="circa"/>
        </if>
      </choose>
      <date date-parts="year" form="numeric" variable="original-date"/>
    </group>
  </macro>
  <!-- 3. Title and descriptions (APA 9.18-22) -->
  <macro name="title-and-descriptions">
    <group delimiter=" ">
      <choose>
        <if variable="title">
          <text macro="title"/>
          <text macro="identifier"/>
          <text macro="description"/>
        </if>
        <else-if match="any" type="bill report">
          <!-- Bills, resolutions, and congressional reports substitute bill number if no title. -->
          <!-- Congressional reports are indistinguishable from other reports -->
          <text macro="identifier-number"/>
          <text macro="description"/>
          <text macro="identifier"/>
        </else-if>
        <else>
          <text macro="description"/>
          <text macro="identifier"/>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="title-and-descriptions-short">
    <choose>
      <if variable="title">
        <text macro="title-short"/>
      </if>
      <else-if match="any" type="bill report">
        <!-- Bills, resolutions, and congressional reports substitute bill number if no title. -->
        <text macro="legal-identifier-bill-report"/>
      </else-if>
      <else>
        <text macro="description-short"/>
      </else>
    </choose>
  </macro>
  <!-- 3.1. Title (APA 9.18) -->
  <macro name="title">
    <choose>
      <if match="any" type="post webpage">
        <!-- part number/title always at the analytic level -->
        <text font-style="italic" macro="title-and-part-filter-review"/>
      </if>
      <!-- Other types are italicized based on presence of `container-title`. Assume that `review` and `review-book` are published either in a serial or on a webpage (APA example 69) -->
      <else-if match="any" type="article-journal article-magazine article-newspaper periodical post-weblog review review-book">
        <text macro="title-serial"/>
      </else-if>
      <else-if match="any" variable="collection-editor compiler editor editorial-director">
        <text macro="title-monographic"/>
      </else-if>
      <else-if match="any" type="interview paper-conference">
        <text macro="title-serial"/>
      </else-if>
      <else>
        <text macro="title-monographic"/>
      </else>
    </choose>
  </macro>
  <macro name="title-short">
    <choose>
      <if match="any" type="review review-book" variable="reviewed-author reviewed-genre reviewed-title">
        <!-- `title` is only the review title if there is a separate `reviewed-genre` or `reviewed-title`; otherwise, it is the title of the reviewed work, printed in the description -->
        <choose>
          <if variable="reviewed-genre title">
            <!-- Quotes, title case -->
            <text form="short" quotes="true" text-case="title" variable="title"/>
          </if>
          <else-if variable="reviewed-title title">
            <!-- Quotes, title case -->
            <text form="short" quotes="true" text-case="title" variable="title"/>
          </else-if>
          <else>
            <text macro="description-short"/>
          </else>
        </choose>
      </if>
      <else-if match="any" type="bill legislation regulation report treaty">
        <!-- No italics or quotes, title case -->
        <text form="short" text-case="title" variable="title"/>
      </else-if>
      <else-if match="any" type="legal_case post">
        <!-- Italicized, sentence case -->
        <text font-style="italic" form="short" variable="title"/>
      </else-if>
      <else-if match="any" type="hearing webpage">
        <!-- Italicized, title case (regardless of `container-title`) -->
        <text font-style="italic" form="short" text-case="title" variable="title"/>
      </else-if>
      <!-- Other types are formatted based on presence of `container-title`, as in title macro -->
      <else-if variable="container-title">
        <!-- Quotes, title case -->
        <text form="short" quotes="true" text-case="title" variable="title"/>
      </else-if>
      <else>
        <!-- Italicized, title case (default) -->
        <text font-style="italic" form="short" text-case="title" variable="title"/>
      </else>
    </choose>
  </macro>
  <!-- Title elements -->
  <macro name="title-and-part-filter-review">
    <choose>
      <if match="any" type="review review-book" variable="reviewed-author reviewed-genre reviewed-title">
        <!-- If a review has no `reviewed-genre` or `reviewed-title`, assume that `title` contains the title of the reviewed work; the description provides it. -->
        <choose>
          <if variable="reviewed-genre title">
            <text macro="title-and-part-title"/>
          </if>
          <else-if variable="reviewed-title title">
            <text macro="title-and-part-title"/>
          </else-if>
        </choose>
      </if>
      <else>
        <text macro="title-and-part-title"/>
      </else>
    </choose>
  </macro>
  <macro name="title-and-part-title">
    <group delimiter=": ">
      <text variable="title"/>
      <text macro="title-part"/>
    </group>
  </macro>
  <macro name="title-and-volume-title">
    <group delimiter=": ">
      <text variable="title"/>
      <text macro="title-volume"/>
    </group>
  </macro>
  <macro name="title-monographic">
    <!-- For monographic items, assume `part-number` and `part-title` refer to the book/volume. -->
    <choose>
      <if variable="container-title">
        <text variable="title"/>
      </if>
      <else>
        <!-- For monographic items without `container-title` and with `volume-title`, append `volume-title` to `title` (APA example 30) -->
        <text font-style="italic" macro="title-and-volume-title"/>
      </else>
    </choose>
  </macro>
  <macro name="title-part">
    <choose>
      <if variable="part-title">
        <group delimiter=". ">
          <text macro="label-part-number"/>
          <text text-case="capitalize-first" variable="part-title"/>
        </group>
      </if>
      <else-if is-numeric="part-number"/>
      <else>
        <text macro="label-part-number"/>
      </else>
    </choose>
  </macro>
  <macro name="title-serial">
    <!-- For serials, assume that `part-number` and `part-title` refer to the article and append to `title` -->
    <choose>
      <if variable="container-title">
        <text macro="title-and-part-filter-review"/>
      </if>
      <else>
        <!-- for serial items without `container-title`, don't append `volume-title` to `title` -->
        <text font-style="italic" macro="title-and-part-filter-review"/>
      </else>
    </choose>
  </macro>
  <macro name="title-volume">
    <group delimiter=", ">
      <choose>
        <!-- Assume that `part-number` and `part-title` of monographic items refer to the source book/volume -->
        <if variable="volume-title">
          <group delimiter=": ">
            <group delimiter=". ">
              <text macro="label-volume"/>
              <text variable="volume-title"/>
            </group>
            <text macro="title-part"/>
          </group>
        </if>
        <else-if variable="part-title">
          <text macro="label-volume"/>
          <text macro="title-part"/>
        </else-if>
        <!-- if there is no `part-title` or `volume title`, `part-number` and `volume` appear in `identifier` if numeric -->
        <else-if is-numeric="part-number volume"/>
        <else-if is-numeric="part-number" variable="volume">
          <text macro="label-volume"/>
        </else-if>
        <else-if is-numeric="volume" variable="part-number">
          <text macro="label-part-number"/>
        </else-if>
        <else-if is-numeric="part-number"/>
        <else-if is-numeric="volume"/>
        <else>
          <text macro="label-volume"/>
          <text macro="label-part-number"/>
        </else>
      </choose>
    </group>
  </macro>
  <!-- 3.2. Identifier (in parentheses) (APA 9.19) -->
  <macro name="identifier">
    <!-- (Secondary contributors; Database location; Genre no. 123; Report Series 123, Version, Edition, Volume, Page) -->
    <group delimiter="; " prefix="(" suffix=")">
      <choose>
        <if type="patent">
          <text macro="identifier-patent"/>
        </if>
        <else-if match="any" type="post webpage">
          <!-- print `container-title` on `post` or `webpage` in the same way as `publisher` -->
          <text macro="identifier-contributors"/>
          <text macro="identifier-number"/>
          <text macro="identifier-monographic"/>
        </else-if>
        <else-if type="report" variable="container-title">
          <!-- If the report is a chapter in a larger report, then most identifying information is printed in the source. -->
          <text macro="identifier-contributors"/>
        </else-if>
        <else-if type="report" variable="title">
          <text macro="identifier-contributors"/>
          <text macro="identifier-number"/>
          <text macro="identifier-monographic"/>
        </else-if>
        <else-if type="report">
          <!-- If there is no `title`, then `genre` and `number` are already printed as the title. -->
          <text macro="identifier-contributors"/>
          <text macro="identifier-monographic"/>
        </else-if>
        <else-if variable="container-title">
          <choose>
            <if match="none" variable="genre title">
              <text macro="label-chapter-number"/>
            </if>
          </choose>
          <text macro="identifier-contributors"/>
          <choose>
            <if match="any" type="broadcast graphic map motion_picture">
              <!-- For some audiovisual media, `number` information comes after title, not `container-title` (APA example 94); but an album track number is `chapter-number` -->
              <text macro="identifier-number"/>
            </if>
          </choose>
          <text macro="identifier-serial"/>
        </else-if>
        <else>
          <text macro="identifier-contributors"/>
          <text macro="identifier-number"/>
          <text macro="identifier-monographic"/>
          <text macro="identifier-serial"/>
        </else>
      </choose>
    </group>
  </macro>
  <!-- Identifier elements -->
  <macro name="identifier-contributors">
    <choose>
      <if match="any" type="article-journal article-magazine article-newspaper periodical post-weblog review review-book">
        <text macro="identifier-contributors-serial"/>
      </if>
      <else-if match="any" variable="collection-editor compiler editor editorial-director">
        <text macro="identifier-contributors-monographic"/>
      </else-if>
      <else-if match="any" type="interview paper-conference">
        <text macro="identifier-contributors-serial"/>
      </else-if>
      <else>
        <text macro="identifier-contributors-monographic"/>
      </else>
    </choose>
  </macro>
  <macro name="identifier-contributors-monographic">
    <group delimiter="; ">
      <choose>
        <if variable="title">
          <names variable="interviewer">
            <name and="symbol"/>
            <label form="short" prefix=", " text-case="title"/>
          </names>
        </if>
      </choose>
      <choose>
        <if match="any" type="post webpage">
          <!-- print `container-title` on `post` or `webpage` in the same way as `publisher` -->
          <names variable="container-author">
            <label form="verb-short" suffix=" " text-case="title"/>
            <name and="symbol"/>
          </names>
          <names delimiter="; " variable="editor translator">
            <name and="symbol"/>
            <label form="short" prefix=", " text-case="title"/>
          </names>
          <names delimiter="; " variable="illustrator narrator">
            <name and="symbol"/>
            <label form="short" prefix=", " text-case="title"/>
          </names>
          <names delimiter="; " variable="compiler chair organizer curator series-creator executive-producer">
            <name and="symbol"/>
            <label prefix=", " text-case="title"/>
          </names>
        </if>
        <else>
          <names delimiter="; " variable="illustrator narrator">
            <name and="symbol"/>
            <label form="short" prefix=", " text-case="title"/>
          </names>
          <choose>
            <if variable="container-title editor-translator"/>
            <else-if variable="container-title">
              <!-- TODO: Check logic once processors start to automatically populate `editor-translator` -->
              <names delimiter="; " variable="translator">
                <name and="symbol"/>
                <label form="short" prefix=", " text-case="title"/>
              </names>
            </else-if>
            <else>
              <names variable="container-author">
                <label form="verb-short" suffix=" " text-case="title"/>
                <name and="symbol"/>
              </names>
              <names delimiter="; " variable="editor translator">
                <name and="symbol"/>
                <label form="short" prefix=", " text-case="title"/>
              </names>
              <names delimiter="; " variable="compiler chair organizer curator series-creator executive-producer">
                <name and="symbol"/>
                <label prefix=", " text-case="title"/>
              </names>
            </else>
          </choose>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="identifier-contributors-serial">
    <group delimiter="; ">
      <choose>
        <if variable="title">
          <names delimiter="; " variable="interviewer">
            <name and="symbol"/>
            <label form="short" prefix=", " text-case="title"/>
          </names>
        </if>
      </choose>
      <names delimiter="; " variable="translator narrator">
        <name and="symbol"/>
        <label form="short" prefix=", " text-case="title"/>
      </names>
    </group>
  </macro>
  <macro name="identifier-locators">
    <choose>
      <if variable="page">
        <text macro="label-page"/>
      </if>
      <else-if variable="chapter-number genre">
        <text macro="label-chapter-number"/>
      </else-if>
      <else-if variable="chapter-number title">
        <text macro="label-chapter-number"/>
      </else-if>
      <!-- `chapter-number` appears earlier in `identifier` if there is no `title` or `genre` -->
    </choose>
  </macro>
  <macro name="identifier-monographic">
    <choose>
      <!-- omit serial types -->
      <if match="any" type="article-journal article-magazine article-newspaper broadcast event patent performance periodical post post-weblog review review-book speech webpage"/>
      <else-if match="any" variable="collection-editor compiler editor editorial-director">
        <!-- monographic types -->
        <text macro="identifier-monographic-item"/>
      </else-if>
      <!-- omit serial types -->
      <else-if match="any" type="interview paper-conference"/>
      <else>
        <!-- monographic types -->
        <text macro="identifier-monographic-item"/>
      </else>
    </choose>
  </macro>
  <macro name="identifier-monographic-item">
    <group delimiter=", ">
      <text macro="label-version"/>
      <text macro="label-edition"/>
      <text macro="identifier-series"/>
      <text macro="label-supplement-number"/>
      <text macro="identifier-number-volume"/>
      <text macro="identifier-number-part"/>
      <text macro="label-issue"/>
      <text macro="identifier-locators"/>
    </group>
  </macro>
  <macro name="identifier-number">
    <group delimiter=" ">
      <choose>
        <if type="thesis" variable="genre">
          <!-- `genre` provided with thesis description (APA example 65) -->
          <text text-case="capitalize-first" value="publication"/>
        </if>
        <else-if variable="number">
          <text text-case="title" variable="genre"/>
        </else-if>
      </choose>
      <text macro="label-number"/>
    </group>
  </macro>
  <macro name="identifier-number-part">
    <choose>
      <!-- Part number printed with part title -->
      <if variable="part-title"/>
      <!-- Non-numeric part numbers printed as part of the title -->
      <else-if is-numeric="part-number">
        <text macro="label-part-number"/>
      </else-if>
    </choose>
  </macro>
  <macro name="identifier-number-volume">
    <choose>
      <!-- Volume number printed with volume/part title -->
      <if variable="volume volume-title"/>
      <else-if variable="part-title volume"/>
      <!-- Non-numeric volumes printed as part of the book title -->
      <else-if is-numeric="volume">
        <text macro="label-volume"/>
      </else-if>
      <else>
        <text macro="label-number-of-volumes"/>
      </else>
    </choose>
  </macro>
  <macro name="identifier-patent">
    <!-- `authority`: U.S. ; `genre`: patent ; `number`: 123,445 -->
    <group delimiter=" ">
      <text form="short" variable="authority"/>
      <choose>
        <if variable="genre">
          <text text-case="capitalize-first" variable="genre"/>
        </if>
        <else>
          <text term="patent" text-case="capitalize-first"/>
        </else>
      </choose>
      <text macro="label-number"/>
    </group>
  </macro>
  <macro name="identifier-serial">
    <choose>
      <if match="any" type="article-journal article-magazine article-newspaper periodical post-weblog review review-book">
        <!-- serial types -->
        <text macro="identifier-number-part"/>
      </if>
      <!-- omit monographic types -->
      <else-if match="any" variable="collection-editor compiler editor editorial-director"/>
      <else-if match="any" type="interview paper-conference">
        <!-- serial types -->
        <text macro="identifier-number-part"/>
      </else-if>
    </choose>
  </macro>
  <macro name="identifier-series">
    <!-- Series given only for report-like types (APA example 52) -->
    <choose>
      <if match="any" type="document report standard">
        <group delimiter=" ">
          <text text-case="title" variable="collection-title"/>
          <text variable="collection-number"/>
        </group>
      </if>
    </choose>
  </macro>
  <!-- 3.3. Description [in square brackets] (APA 9.21) -->
  <macro name="description">
    <group prefix="[" suffix="]">
      <choose>
        <if match="any" type="interview" variable="interviewer">
          <text macro="description-interview"/>
        </if>
        <else-if match="any" type="review review-book" variable="reviewed-author reviewed-genre reviewed-title">
          <text macro="description-review"/>
        </else-if>
        <else-if type="personal_communication">
          <text macro="description-letter"/>
        </else-if>
        <else-if type="song" variable="composer">
          <text macro="description-song"/>
        </else-if>
        <else-if type="thesis">
          <text macro="description-thesis"/>
        </else-if>
        <else-if match="any" type="article-journal article-magazine article-newspaper periodical post-weblog review review-book">
          <text macro="description-serial"/>
        </else-if>
        <else-if match="none" variable="container-title">
          <!-- Other description -->
          <text macro="description-format"/>
        </else-if>
        <!-- For unpublished conference presentations/performances/events, chapters in reports/standards/generic documents, software, place description within the source element -->
        <else-if match="any" type="document report software standard"/>
        <else-if match="any" type="event paper-conference performance speech">
          <choose>
            <if match="any" variable="collection-editor compiler editor editorial-director issue page supplement-number volume">
              <text macro="description-format"/>
            </if>
          </choose>
        </else-if>
        <else>
          <text macro="description-format"/>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="description-short">
    <group prefix="[" suffix="]">
      <choose>
        <if match="any" type="interview" variable="interviewer">
          <text macro="description-interview-short"/>
        </if>
        <else-if match="any" type="review review-book" variable="reviewed-author reviewed-genre reviewed-title">
          <text macro="description-review-short"/>
        </else-if>
        <else-if type="personal_communication">
          <text macro="description-letter-short"/>
        </else-if>
        <else-if match="any" type="article-journal article-magazine article-newspaper periodical post-weblog review review-book">
          <!-- serial types -->
          <text macro="description-serial-short"/>
        </else-if>
        <else-if match="any" variable="collection-editor compiler editor editorial-director">
          <!-- monographic types -->
          <text macro="description-format-short"/>
        </else-if>
        <else-if match="any" type="interview paper-conference">
          <!-- serial types -->
          <text macro="description-serial-short"/>
        </else-if>
        <else>
          <!-- monographic types -->
          <text macro="description-format-short"/>
        </else>
      </choose>
    </group>
  </macro>
  <!-- Description elements -->
  <macro name="description-format">
    <choose>
      <if match="any" variable="genre medium">
        <group delimiter="; ">
          <choose>
            <if match="none" variable="number">
              <text text-case="capitalize-first" variable="genre"/>
            </if>
          </choose>
          <text text-case="capitalize-first" variable="medium"/>
        </group>
      </if>
      <else>
        <text macro="description-format-term-generic"/>
      </else>
    </choose>
  </macro>
  <macro name="description-format-short">
    <choose>
      <if variable="genre">
        <text form="short" text-case="capitalize-first" variable="genre"/>
      </if>
      <else-if variable="medium">
        <text form="short" text-case="capitalize-first" variable="medium"/>
      </else-if>
      <else>
        <text macro="description-format-term-generic"/>
      </else>
    </choose>
  </macro>
  <macro name="description-format-term-generic">
    <!-- Generic labels for specific types -->
    <choose>
      <if type="broadcast">
        <text term="broadcast" text-case="capitalize-first"/>
      </if>
      <else-if type="collection">
        <text term="collection" text-case="capitalize-first"/>
      </else-if>
      <else-if type="dataset">
        <text term="dataset" text-case="capitalize-first"/>
      </else-if>
      <else-if type="figure">
        <text term="figure" text-case="capitalize-first"/>
      </else-if>
      <else-if type="graphic">
        <text term="graphic" text-case="capitalize-first"/>
      </else-if>
      <else-if match="any" type="interview personal_communication">
        <choose>
          <if match="none" variable="archive archive-place container-title DOI number publisher references URL">
            <text term="personal-communication" text-case="capitalize-first"/>
          </if>
          <else-if type="interview">
            <text term="interview" text-case="capitalize-first"/>
          </else-if>
          <else-if type="personal_communication">
            <text term="letter" text-case="capitalize-first"/>
          </else-if>
        </choose>
      </else-if>
      <else-if type="manuscript">
        <choose>
          <if match="none" variable="archive archive-place container-title DOI number publisher references URL">
            <text term="manuscript" text-case="capitalize-first"/>
          </if>
        </choose>
      </else-if>
      <else-if type="map">
        <text term="map" text-case="capitalize-first"/>
      </else-if>
      <else-if type="motion_picture">
        <text term="motion_picture" text-case="capitalize-first"/>
      </else-if>
      <else-if type="periodical" variable="container-title supplement-number">
        <text term="supplement" text-case="capitalize-first"/>
      </else-if>
      <else-if type="periodical" variable="container-title title">
        <text term="special-issue" text-case="capitalize-first"/>
      </else-if>
      <else-if type="song">
        <text term="song" text-case="capitalize-first"/>
      </else-if>
      <else-if type="software">
        <text term="software" text-case="capitalize-first"/>
      </else-if>
      <else-if type="post">
        <text term="post" text-case="capitalize-first"/>
      </else-if>
      <else-if type="review">
        <text term="review" text-case="capitalize-first"/>
      </else-if>
      <else-if type="review-book">
        <text term="review-book" text-case="capitalize-first"/>
      </else-if>
    </choose>
  </macro>
  <macro name="description-interview">
    <group delimiter="; ">
      <choose>
        <if variable="interviewer title">
          <!-- Avoid repeating 'interview' -->
          <choose>
            <if match="none" variable="number">
              <text text-case="capitalize-first" variable="genre"/>
            </if>
          </choose>
          <text text-case="capitalize-first" variable="medium"/>
        </if>
        <else-if variable="title">
          <text macro="description-format"/>
        </else-if>
        <else-if variable="genre">
          <group delimiter=" ">
            <text text-case="capitalize-first" variable="genre"/>
            <choose>
              <if variable="interviewer">
                <text form="verb" term="container-author"/>
                <names variable="interviewer">
                  <name and="symbol"/>
                </names>
              </if>
            </choose>
          </group>
        </else-if>
        <else-if variable="interviewer">
          <names variable="interviewer">
            <label form="verb" suffix=" " text-case="capitalize-first"/>
            <name and="symbol"/>
          </names>
          <text text-case="capitalize-first" variable="medium"/>
        </else-if>
        <else>
          <text macro="description-format"/>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="description-interview-short">
    <names variable="interviewer">
      <label form="verb" suffix=" " text-case="capitalize-first"/>
      <name and="symbol" form="short"/>
      <substitute>
        <text macro="description-format-short"/>
      </substitute>
    </names>
  </macro>
  <macro name="description-letter">
    <choose>
      <if variable="recipient">
        <group delimiter="; ">
          <group delimiter=" ">
            <text macro="description-format"/>
            <names variable="recipient">
              <label form="verb" suffix=" "/>
              <name and="symbol" initialize="false"/>
            </names>
          </group>
          <text macro="description-medium"/>
        </group>
      </if>
      <else>
        <text macro="description-format"/>
      </else>
    </choose>
  </macro>
  <macro name="description-letter-short">
    <choose>
      <if variable="recipient">
        <group delimiter=" ">
          <text macro="description-format-short"/>
          <names variable="recipient">
            <label form="verb" suffix=" "/>
            <name and="symbol" form="short"/>
          </names>
        </group>
      </if>
      <else>
        <text macro="description-format-short"/>
      </else>
    </choose>
  </macro>
  <macro name="description-medium">
    <choose>
      <if variable="number"/>
      <else-if variable="genre">
        <text text-case="capitalize-first" variable="medium"/>
      </else-if>
    </choose>
  </macro>
  <macro name="description-review">
    <group delimiter="; ">
      <group delimiter=", ">
        <group delimiter=" ">
          <choose>
            <if variable="reviewed-genre">
              <text term="review-of" text-case="capitalize-first"/>
              <text variable="reviewed-genre"/>
            </if>
            <else-if variable="number">
              <!-- Genre printed with `number` -->
              <text form="short" term="review-of" text-case="capitalize-first"/>
            </else-if>
            <!-- If no `reviewed-genre`, assume that `genre` or `medium` is entered as 'Review of the book' or similar -->
            <else-if variable="genre">
              <text text-case="capitalize-first" variable="genre"/>
            </else-if>
            <else-if variable="medium">
              <text text-case="capitalize-first" variable="medium"/>
            </else-if>
            <else-if type="review-book">
              <text term="review-of" text-case="capitalize-first"/>
              <text term="book" text-case="lowercase"/>
            </else-if>
            <else>
              <text form="short" term="review-of" text-case="capitalize-first"/>
            </else>
          </choose>
          <text macro="description-review-title"/>
        </group>
        <names variable="reviewed-author">
          <label form="verb-short" suffix=" "/>
          <name and="symbol"/>
        </names>
      </group>
      <text macro="description-medium"/>
    </group>
  </macro>
  <macro name="description-review-short">
    <group delimiter=" ">
      <text form="short" term="review-of" text-case="capitalize-first"/>
      <text macro="description-review-title-short"/>
    </group>
  </macro>
  <macro name="description-review-title">
    <choose>
      <if match="any" variable="reviewed-genre reviewed-title">
        <!-- Not possible to distinguish TV series episode from other reviewed works without a reviewed source title (APA example 69) -->
        <!-- TODO: Adapt for `reviewed-container-title` or similar if it becomes available -->
        <text font-style="italic" variable="reviewed-title"/>
      </if>
      <else>
        <!-- Assume `title` is the title of the reviewed work -->
        <text font-style="italic" variable="title"/>
      </else>
    </choose>
  </macro>
  <macro name="description-review-title-short">
    <choose>
      <if match="any" variable="reviewed-genre reviewed-title">
        <!-- Not possible to distinguish TV series episode from other reviewed works without a reviewed source title (APA example 69) -->
        <!-- TODO: Adapt for `reviewed-container-title` or similar if it becomes available -->
        <text font-style="italic" form="short" text-case="title" variable="reviewed-title"/>
      </if>
      <else>
        <!-- Assume `title` is the title of the reviewed work -->
        <text font-style="italic" form="short" text-case="title" variable="title"/>
      </else>
    </choose>
  </macro>
  <macro name="description-serial">
    <group delimiter="; ">
      <text macro="description-format"/>
      <choose>
        <if match="none" variable="title">
          <text variable="section"/>
        </if>
      </choose>
    </group>
  </macro>
  <macro name="description-serial-short">
    <choose>
      <if variable="title"/>
      <else-if variable="section">
        <text form="short" text-case="capitalize-first" variable="section"/>
      </else-if>
      <else>
        <text macro="description-format-short"/>
      </else>
    </choose>
  </macro>
  <macro name="description-song">
    <!-- Performer of classical music works -->
    <group delimiter="; ">
      <group delimiter=" ">
        <!-- Based on `description-format` macro -->
        <choose>
          <if match="any" variable="genre medium">
            <choose>
              <if match="none" variable="number">
                <text text-case="capitalize-first" variable="genre"/>
              </if>
            </choose>
            <text text-case="capitalize-first" variable="medium"/>
            <text form="verb" term="performer"/>
          </if>
          <else>
            <text form="verb" term="performer" text-case="capitalize-first"/>
          </else>
        </choose>
        <names variable="author">
          <name and="symbol"/>
          <substitute>
            <names variable="performer"/>
          </substitute>
        </names>
      </group>
      <text macro="description-medium"/>
    </group>
  </macro>
  <macro name="description-thesis">
    <group delimiter="; ">
      <group delimiter=", ">
        <text text-case="capitalize-first" variable="genre"/>
        <choose>
          <if match="any" variable="archive DOI URL">
            <!-- Include the university in description if thesis is published -->
            <text variable="publisher"/>
          </if>
        </choose>
      </group>
      <text text-case="capitalize-first" variable="medium"/>
    </group>
  </macro>
  <!-- 4. Source (APA 9.23-37) -->
  <macro name="source">
    <group delimiter=". ">
      <choose>
        <if match="any" type="post webpage"/>
        <else-if match="any" type="article-journal article-magazine article-newspaper periodical post-weblog review review-book">
          <text macro="source-serial"/>
        </else-if>
        <else-if match="any" variable="collection-editor compiler editor editorial-director">
          <text macro="source-monographic"/>
        </else-if>
        <else-if match="any" type="interview paper-conference">
          <text macro="source-serial"/>
        </else-if>
        <else>
          <text macro="source-monographic"/>
        </else>
      </choose>
      <text macro="source-publisher"/>
      <text macro="source-archive"/>
      <text macro="source-location"/>
      <text macro="source-website"/>
    </group>
  </macro>
  <!-- 4.1. Serial sources (APA 9.25-27) -->
  <macro name="source-serial">
    <group delimiter=". ">
      <group delimiter=", ">
        <group delimiter=", " font-style="italic">
          <text text-case="title" variable="container-title"/>
          <!-- `collection-title` is for any serial with multiple series (e.g. 'second series') -->
          <text text-case="title" variable="collection-title"/>
        </group>
        <group>
          <text font-style="italic" variable="volume"/>
          <group delimiter=", " prefix="(" suffix=")">
            <text variable="issue"/>
            <text macro="label-supplement-number"/>
          </group>
        </group>
        <choose>
          <if variable="number">
            <text macro="label-number-article"/>
          </if>
          <else>
            <text variable="page"/>
          </else>
        </choose>
      </group>
      <choose>
        <if match="any" variable="collection-title issue number page supplement-number volume"/>
        <else-if variable="issued status">
          <!-- Print the status variable rather than use generic CSL terms (`in press`, etc.) -->
          <text text-case="capitalize-first" variable="status"/>
        </else-if>
      </choose>
    </group>
  </macro>
  <!-- 4.2. Monographic sources (APA 9.28) -->
  <macro name="source-monographic">
    <!-- Monographic sources repeat main reference elements -->
    <choose>
      <if variable="container-title">
        <group delimiter=" ">
          <choose>
            <if type="song">
              <text term="on" text-case="capitalize-first"/>
            </if>
            <else>
              <text term="in" text-case="capitalize-first"/>
            </else>
          </choose>
          <group delimiter=", ">
            <text macro="source-monographic-author"/>
            <text macro="source-monographic-title"/>
          </group>
          <text macro="source-monographic-identifier"/>
          <text macro="source-monographic-description"/>
        </group>
      </if>
    </choose>
  </macro>
  <!-- Monographic source author -->
  <macro name="source-monographic-author">
    <names variable="container-author">
      <name and="symbol"/>
      <label prefix=" (" suffix=")" text-case="title"/>
      <substitute>
        <names variable="executive-producer"/>
        <names variable="series-creator"/>
        <names variable="editor-translator">
          <name and="symbol"/>
          <label form="short" prefix=" (" suffix=")" text-case="title"/>
        </names>
        <!-- TODO: Translator omitted on the assumption that editor-translators are uncommon for chapter citations. If needed, direct entry or automatic population of `editor-translator` can produce combined labels. -->
        <names delimiter="; " variable="editor">
          <name and="symbol"/>
          <label form="short" prefix=" (" suffix=")" text-case="title"/>
        </names>
        <names variable="editorial-director">
          <name and="symbol"/>
          <label form="short" prefix=" (" suffix=")" text-case="title"/>
        </names>
        <names variable="compiler"/>
        <choose>
          <if match="any" type="event performance speech">
            <names variable="chair"/>
            <names variable="organizer"/>
          </if>
        </choose>
        <names variable="curator"/>
        <names variable="collection-editor">
          <name and="symbol"/>
          <label form="short" prefix=" (" suffix=")" text-case="title"/>
        </names>
      </substitute>
    </names>
  </macro>
  <!-- Monographic source title -->
  <macro name="source-monographic-title">
    <group delimiter=": " font-style="italic">
      <text variable="container-title"/>
      <text macro="title-volume"/>
    </group>
  </macro>
  <!-- Monographic source identifier -->
  <macro name="source-monographic-identifier">
    <choose>
      <if variable="container-title">
        <group delimiter="; " prefix="(" suffix=")">
          <choose>
            <if match="none" type="broadcast graphic map motion_picture">
              <!-- For some audiovisual media, number information comes after `title`, not `container-title` (APA example 94); but an album track number is `chapter-number` -->
              <text macro="identifier-number"/>
            </if>
          </choose>
          <text macro="identifier-monographic"/>
        </group>
      </if>
    </choose>
  </macro>
  <!-- Monographic source description -->
  <macro name="source-monographic-description">
    <group prefix="[" suffix="]">
      <choose>
        <if match="any" type="document report software standard">
          <!-- place description after `container-title` -->
          <text macro="description-format"/>
        </if>
        <else-if match="any" variable="collection-editor compiler editor editorial-director issue page supplement-number volume"/>
        <else-if match="any" type="event paper-conference performance speech">
          <!-- unpublished conference presentations should describe the session -->
          <text macro="description-format"/>
        </else-if>
      </choose>
    </group>
  </macro>
  <!-- 4.3. Publisher sources (APA 9.29) -->
  <macro name="source-publisher">
    <choose>
      <if type="thesis">
        <choose>
          <if match="none" variable="archive DOI URL">
            <!-- Provide university in `publisher` if unpublished -->
            <text variable="publisher"/>
          </if>
        </choose>
      </if>
      <!-- omit serial types -->
      <else-if match="any" type="article-journal article-magazine article-newspaper periodical post-weblog review review-book"/>
      <else-if match="any" variable="collection-editor compiler editor editorial-director">
        <!-- monographic types -->
        <text variable="publisher"/>
      </else-if>
      <else-if type="interview">
        <!-- give publisher for a broadcast `interview` handled as a serial type -->
        <text variable="publisher"/>
      </else-if>
      <!-- omit serial `paper-conference` -->
      <else-if type="paper-conference"/>
      <else>
        <text variable="publisher"/>
      </else>
    </choose>
  </macro>
  <!-- 4.4. Database and archive sources (APA 9.30) -->
  <macro name="source-archive">
    <group delimiter=", ">
      <choose>
        <if variable="archive_collection">
          <!-- With collection: `archive_collection` (`archive_location`), `archive`, `archive-place` -->
          <group delimiter=" ">
            <text variable="archive_collection"/>
            <text prefix="(" suffix=")" variable="archive_location"/>
          </group>
          <text variable="archive"/>
          <text variable="archive-place"/>
        </if>
        <else>
          <!-- No collection: `archive` (`archive_location`), `archive-place` -->
          <group delimiter=" ">
            <text variable="archive"/>
            <text prefix="(" suffix=")" variable="archive_location"/>
          </group>
          <text variable="archive-place"/>
        </else>
      </choose>
      <!-- a database identifier/number is stored in `number` and appears in `identifier-number` -->
    </group>
  </macro>
  <!-- 4.5. Works with specific locations (APA 9.31) -->
  <macro name="source-location">
    <choose>
      <if match="any" variable="event event-title">
        <!-- TODO: To prevent Zotero from printing `event-place`, due to its double-mapping of `publisher-place` and `event-place`. Remove this when that is changed. -->
        <choose>
          <if type="paper-conference">
            <choose>
              <if match="none" variable="collection-editor compiler editor editorial-director issue page supplement-number volume">
                <!-- Don't print event info for conference papers published in a proceedings -->
                <text macro="source-location-title-place-date"/>
              </if>
            </choose>
          </if>
          <else>
            <!-- For other item types, print event info even if published (e.g. collection catalogs, performance programs). These items aren't given explicit examples in the APA manual, so err on the side of providing too much information. -->
            <text macro="source-location-title-place-date"/>
          </else>
        </choose>
      </if>
    </choose>
  </macro>
  <macro name="source-location-title-place-date">
    <group delimiter=", ">
      <choose>
        <!-- TODO: We expect `event-title` to be used, but processors and applications may not be updated yet. This macro ensures that either `event` or `event-title` can be accepted. Remove if processor logic and application adoption can handle this. -->
        <if variable="event-title">
          <text text-case="capitalize-first" variable="event-title"/>
        </if>
        <else>
          <text text-case="capitalize-first" variable="event"/>
        </else>
      </choose>
      <text variable="event-place"/>
      <text macro="date-event-full"/>
    </group>
  </macro>
  <!-- 4.6. Social media and website sources (APA 9.32-33) -->
  <macro name="source-website">
    <choose>
      <if match="any" type="post webpage">
        <text text-case="title" variable="container-title"/>
      </if>
    </choose>
  </macro>
  <!-- 4.7. DOI or URL (APA 9.34-36) -->
  <macro name="source-DOI-URL">
    <choose>
      <if variable="DOI">
        <text prefix="https://doi.org/" variable="DOI"/>
      </if>
      <else-if variable="URL">
        <group delimiter=" ">
          <choose>
            <if match="none" variable="issued status">
              <text term="retrieved" text-case="capitalize-first"/>
              <group delimiter=", ">
                <date form="text" variable="accessed"/>
                <text term="from"/>
              </group>
            </if>
          </choose>
          <text variable="URL"/>
        </group>
      </else-if>
    </choose>
  </macro>
  <!-- 5. Publication history (APA 9.39-41) -->
  <macro name="publication-history">
    <!-- Notes on source element: original publication, reprint info, retraction info -->
    <group delimiter="; " prefix="(" suffix=")">
      <choose>
        <if type="patent">
          <text variable="references"/>
        </if>
        <else>
          <!-- Print `status` here for "retracted" etc. if it's not printed elsewhere. -->
          <choose>
            <if match="none" variable="issued"/>
            <else-if match="any" variable="collection-title issue number page supplement-number volume">
              <text text-case="capitalize-first" variable="status"/>
            </else-if>
          </choose>
          <choose>
            <if variable="references">
              <!-- Provide the option for more elaborate description of publication history, such as full "reprinted" references (APA examples 11, 43, 44) -->
              <text variable="references"/>
            </if>
            <else>
              <!-- Format publication history using CSL variables -->
              <group delimiter=" ">
                <text term="original-work-published" text-case="capitalize-first"/>
                <group delimiter=", ">
                  <group delimiter=" ">
                    <text value="as"/>
                    <text font-style="italic" variable="original-title"/>
                  </group>
                  <text macro="date-original-year"/>
                  <text variable="original-publisher"/>
                </group>
              </group>
            </else>
          </choose>
        </else>
      </choose>
    </group>
  </macro>
  <!-- 6. Legal references: Bluebook style (shared with Chicago) -->
  <!-- Where APA or Chicago diverge from Bluebook, the official manual is followed -->
  <macro name="legal-reference">
    <!-- Type usage:

         `bill`
         : bills, resolutions, federal reports

         `legal_case`
         : all legal and court cases

         `hearing`
         : hearings and testimony

         `legislation`
         : statutes, constitutional items, and charters

         `regulation`
         : codified regulations, uncodified regulations, executive orders

         `treaty`
         : treaties
    -->
    <group delimiter=", ">
      <choose>
        <if type="treaty">
          <text macro="legal-title"/>
          <names variable="author">
            <!-- Treaty parties should be included at least for bilateral treaties (Bluebook 21.4.2) -->
            <name delimiter="-" et-al-min="100" et-al-use-first="99" form="short" initialize="false"/>
          </names>
          <text macro="legal-date"/>
          <!-- treaty source/report in addition to URL (Bluebook 21.4.5) -->
          <text macro="legal-source"/>
        </if>
        <else>
          <group delimiter=" ">
            <group delimiter=", ">
              <text macro="legal-title"/>
              <text macro="legal-source"/>
            </group>
            <text macro="legal-date"/>
            <text macro="legal-identifier"/>
          </group>
        </else>
      </choose>
      <group delimiter=" ">
        <!-- locator for use in notes -->
        <choose>
          <if locator="page" variable="page">
            <text term="at"/>
          </if>
        </choose>
        <text macro="label-locator"/>
      </group>
    </group>
  </macro>
  <!-- 6.1. Legal date -->
  <macro name="legal-date">
    <choose>
      <if type="treaty">
        <text macro="date-issued-full"/>
      </if>
      <else-if type="legal_case">
        <text macro="legal-date-case"/>
      </else-if>
      <else-if match="any" type="bill hearing legislation regulation">
        <group delimiter=" " prefix="(" suffix=")">
          <group delimiter=" ">
            <text macro="date-original-year"/>
            <text form="symbol" term="and"/>
          </group>
          <choose>
            <if variable="issued">
              <text macro="date-issued-year"/>
            </if>
            <else>
              <!-- Show proposal date for uncodified regulations. Assume date is entered literally ala "proposed May 23, 2016". -->
              <!-- TODO: Add `proposed` date here if that becomes available -->
              <date form="text" variable="submitted"/>
            </else>
          </choose>
        </group>
      </else-if>
    </choose>
  </macro>
  <macro name="legal-date-case">
    <group delimiter=" " prefix="(" suffix=")">
      <text variable="authority"/>
      <choose>
        <if variable="container-title">
          <!-- Print only year for cases published in reporters-->
          <text macro="date-issued-year"/>
        </if>
        <else>
          <text macro="date-issued-full"/>
        </else>
      </choose>
    </group>
  </macro>
  <!-- 6.2.1. Legal title -->
  <macro name="legal-title">
    <choose>
      <if match="any" type="bill legal_case legislation regulation treaty">
        <text text-case="title" variable="title"/>
      </if>
      <else-if type="hearing">
        <!-- use standard format (Bluebook 13.3) -->
        <group delimiter=": " font-style="italic">
          <text text-case="capitalize-first" variable="title"/>
          <group delimiter=" ">
            <text term="hearing" text-case="capitalize-first"/>
            <group delimiter=" ">
              <text term="on"/>
              <text variable="number"/>
            </group>
            <group delimiter=" ">
              <text value="before the"/>
              <text variable="section"/>
            </group>
          </group>
        </group>
      </else-if>
    </choose>
  </macro>
  <!-- 6.2.2. Legal identifier -->
  <macro name="legal-identifier">
    <group delimiter=" " prefix="(" suffix=")">
      <choose>
        <if type="hearing">
          <!-- Use the 'verb' form of the hearing term to hold 'testimony of' -->
          <text form="verb" term="hearing"/>
          <names variable="author">
            <name and="symbol" initialize="false"/>
          </names>
        </if>
        <else-if match="any" type="bill legislation regulation">
          <!-- For uncodified regulations, assume future code section is in `status`. -->
          <text variable="status"/>
        </else-if>
      </choose>
    </group>
  </macro>
  <macro name="legal-identifier-bill-report">
    <group delimiter=" ">
      <text variable="genre"/>
      <choose>
        <if match="any" variable="authority chapter-number container-title">
          <text variable="number"/>
        </if>
        <else>
          <!-- If there is no legislative body, session number, or code/record title, assume the item is a congressional report and include 'No.' label. -->
          <text macro="label-number-capitalized"/>
        </else>
      </choose>
    </group>
  </macro>
  <!-- 6.3. Legal source -->
  <macro name="legal-source">
    <!-- Expect legal item `container-title` to be stored in short form -->
    <choose>
      <if type="bill">
        <text macro="legal-source-bill"/>
      </if>
      <else-if type="hearing">
        <text macro="legal-source-hearing"/>
      </else-if>
      <else-if type="legal_case">
        <text macro="legal-source-case"/>
      </else-if>
      <else-if type="legislation">
        <text macro="legal-source-legislation"/>
      </else-if>
      <else-if type="regulation">
        <text macro="legal-source-regulation"/>
      </else-if>
      <else-if type="treaty">
        <text macro="legal-source-treaty"/>
      </else-if>
    </choose>
  </macro>
  <!-- Legal source types -->
  <macro name="legal-source-bill">
    <group delimiter=", ">
      <text macro="legal-identifier-bill-report"/>
      <group delimiter=" ">
        <text variable="authority"/>
        <!-- `chapter-number` is a session number -->
        <text variable="chapter-number"/>
      </group>
      <group delimiter=" ">
        <text variable="volume"/>
        <text variable="container-title"/>
        <text variable="page-first"/>
      </group>
    </group>
  </macro>
  <macro name="legal-source-case">
    <group delimiter=" ">
      <choose>
        <if variable="container-title">
          <text variable="volume"/>
          <text variable="container-title"/>
          <text macro="label-section-symbol"/>
          <choose>
            <if match="any" variable="page page-first">
              <text variable="page-first"/>
            </if>
            <else>
              <text value="___"/>
            </else>
          </choose>
        </if>
        <else>
          <text macro="label-number-capitalized"/>
        </else>
      </choose>
    </group>
  </macro>
  <macro name="legal-source-hearing">
    <group delimiter=" ">
      <text variable="authority"/>
      <!-- `chapter-number` is a session number -->
      <text variable="chapter-number"/>
    </group>
  </macro>
  <macro name="legal-source-legislation">
    <choose>
      <if variable="number">
        <!-- `number` is a public law number -->
        <group delimiter=", ">
          <group delimiter=" ">
            <choose>
              <if variable="genre">
                <text text-case="capitalize-first" variable="genre"/>
              </if>
              <else>
                <text form="short" term="legislation" text-case="capitalize-first"/>
              </else>
            </choose>
            <text macro="label-number-capitalized"/>
          </group>
          <group delimiter=" ">
            <text variable="volume"/>
            <text variable="container-title"/>
            <text variable="page-first"/>
          </group>
        </group>
      </if>
      <else>
        <group delimiter=" ">
          <text variable="volume"/>
          <text variable="container-title"/>
          <choose>
            <if variable="section">
              <text macro="label-section-symbol"/>
            </if>
            <else>
              <text variable="page-first"/>
            </else>
          </choose>
        </group>
      </else>
    </choose>
  </macro>
  <macro name="legal-source-regulation">
    <group delimiter=", ">
      <group delimiter=" ">
        <text variable="genre"/>
        <text macro="label-number-capitalized"/>
      </group>
      <group delimiter=" ">
        <text variable="volume"/>
        <text variable="container-title"/>
        <choose>
          <if variable="section">
            <text macro="label-section-symbol"/>
          </if>
          <else>
            <text variable="page-first"/>
          </else>
        </choose>
      </group>
    </group>
  </macro>
  <macro name="legal-source-treaty">
    <group delimiter=" ">
      <number variable="volume"/>
      <text variable="container-title"/>
      <choose>
        <if match="any" variable="page page-first">
          <text variable="page-first"/>
        </if>
        <else>
          <text macro="label-number-capitalized"/>
        </else>
      </choose>
    </group>
  </macro>
  <!-- Citation -->
  <citation collapse="year" disambiguate-add-givenname="true" disambiguate-add-names="true" disambiguate-add-year-suffix="true" et-al-min="3" et-al-use-first="1" givenname-disambiguation-rule="primary-name-with-initials">
    <sort>
      <key macro="author-sort" names-min="3" names-use-first="1"/>
      <key macro="date-sort-group"/>
      <key macro="date-sort"/>
      <key variable="status"/>
    </sort>
    <layout delimiter="; " prefix="(" suffix=")">
      <group delimiter=", ">
        <text macro="author-short"/>
        <text macro="date-short"/>
        <text macro="label-locator"/>
      </group>
    </layout>
  </citation>
  <!-- Bibliography -->
  <macro name="bibliography">
    <group delimiter=" ">
      <choose>
        <if match="any" type="bill hearing legal_case legislation regulation treaty">
          <!-- Legal items have different orders and delimiters -->
          <text macro="legal-reference" suffix="."/>
          <text macro="source-DOI-URL"/>
          <text variable="references"/>
        </if>
        <else>
          <group delimiter=". " suffix=".">
            <text macro="author-and-contributors"/>
            <text macro="date"/>
            <text macro="title-and-descriptions"/>
            <text macro="source"/>
          </group>
          <text macro="source-DOI-URL"/>
          <text macro="publication-history"/>
        </else>
      </choose>
    </group>
  </macro>
  <bibliography entry-spacing="0" et-al-min="21" et-al-use-first="19" et-al-use-last="true" hanging-indent="true" line-spacing="2">
    <sort>
      <key macro="author-sort"/>
      <key macro="date-sort-group"/>
      <key macro="date-sort"/>
      <key variable="status"/>
      <key macro="title"/>
      <key variable="volume"/>
      <key variable="part-number"/>
      <key variable="event-date"/>
      <key variable="original-date"/>
      <key macro="source-archive"/>
    </sort>
    <layout>
      <choose>
        <if match="any" variable="archive archive-place container-title DOI number publisher references URL">
          <text macro="bibliography"/>
        </if>
        <!-- an inaccessible `interview` or `personal_communication` is cited in-text only (APA 8.9) -->
        <else-if match="any" type="interview personal_communication"/>
        <else>
          <text macro="bibliography"/>
        </else>
      </choose>
    </layout>
  </bibliography>
</style>
