Year of publication, which should be expressed as a 4-digit number: “1776” or “1924”
Unpublished. The <year> element within a citation can be used to indicate that the cited material is not actually published and therefore will not be found in PubMed, CrossRef, or PsycINFO (i.e., there is no need for matching). The <year>’s @content-type attribute is set to “unpublished”.
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Text, numbers, or special characters
<mixed-citation>, <product>, <pub-date>, <related-article>, <string-date>
... <front> <journal-meta>...</journal-meta> <article-meta> <article-id pub-id-type="apaID">pst_45_3_281</article-id> <article-id pub-id-type="doi">10.1037/a0013305</article-id> <article-id pub-id-type="pi-uid">2008-13167-001</article-id> <article-categories> <subj-group subj-group-type="toc-heading"> <subject>Regular Articles</subject> </subj-group> </article-categories> <title-group> <article-title>THERAPIST IMMEDIACY IN BRIEF PSYCHOTHERAPY: CASE STUDY I</article-title> </title-group> <contrib-group>...</contrib-group> ... <pub-date pub-type="online"> <string-date><month number="7">July</month> <day>7</day>, <year>2008</year></string-date> </pub-date> <pub-date pub-type="print"> <string-date><month number="9">September</month> <year>2008</year></string-date> </pub-date> <volume>45</volume> <issue>3</issue> <fpage>281</fpage> <lpage>297</lpage> <permissions copyright-status="active">...</permissions> <abstract xml:lang="en">...</abstract> <kwd-group xml:lang="en">...</kwd-group> </article-meta> </front> ...
<ref-list>
<title>References</title>
<ref>
<mixed-citation id="c1" publication-type="journal">
...</mixed-citation>
</ref>
<ref>
<mixed-citation id="c2" publication-type="journal">
<person-group person-group-type="author">
<string-name><surname>Klimoski</surname>, <given-names>R.</given-names></string-name>,
& <string-name><surname>Palmer</surname>, <given-names>S.</given-names></string-name>
</person-group>
(<year>1993</year>).
<article-title>The ADA and the hiring process in organizations</article-title>.
<source>Consulting Psychology Journal: Practice and Research</source>,
<volume>45</volume>(<issue>2</issue>),
<fpage>10</fpage>-<lpage>36</lpage>.
</mixed-citation>
</ref>
<ref>...</ref>
</ref-list>
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