...
<ref>
<element-citation publication-type="book" publication-format="print">
<name><surname>Al-Ibrahim</surname>
<given-names>MS</given-names></name>
<name><surname>Gross</surname>
<given-names>JY</given-names></name>
<chapter-title>Tobacco use</chapter-title>
<person-group person-group-type="editor">
<name><surname>Walker</surname>
<given-names>HK</given-names></name>
<name><surname>Hall</surname>
<given-names>WD</given-names></name>
<name><surname>Hurst</surname>
<given-names>JW</given-names></name>
</person-group>
<source>Clinical methods: the history, physical,
and laboratory examinations</source>
<publisher-loc>Stoneham (MA)</publisher-loc>
<publisher-name>Butterworth Publishers</publisher-name>
<date-in-citation content-type="copyright-year"
iso-8601-date="1990">1990</date-in-citation>
<fpage>214</fpage>
<lpage>216</lpage>
</element-citation>
</ref>
...
...
<ref>
<mixed-citation publication-type="book" publication-format="print">
<string-name><surname>Al-Ibrahim</surname>,
<given-names>MS</given-names></string-name>,
<string-name><surname>Gross</surname>,
<given-names>JY</given-names></string-name>.
<chapter-title>Tobacco use</chapter-title>. In:
<string-name><surname>Walker</surname>,
<given-names>HK</given-names></string-name>
<string-name><surname>Hall</surname>,
<given-names>WD</given-names></string-name>
<string-name><surname>Hurst</surname>,
<given-names>JW</given-names></string-name>,
editors. <source>Clinical methods: the
history, physical, and laboratory examinations</source>.
<publisher-loc>Stoneham (MA)</publisher-loc>:
<publisher-name>Butterworth Publishers</publisher-name>;
©<date-in-citation content-type="copyright-year"
iso-8601-date="1990">1990</date-in-citation>.
p. <fpage>214</fpage>-<lpage>216</lpage>.</mixed-citation>
</ref>
...
And here is a book that is in videocassette format:
...
<ref>
<element-citation publication-type="book"
publication-format="videocassette" publisher-type="gov">
<name><surname>Stryker</surname>
<given-names>MP</given-names></name>
<source>Making maps in the brain</source>
<comment>[videocassette]</comment>
<publisher-loc>Bethesda (MD)</publisher-loc>
<publisher-name>National Institutes of Health (US),
Medical Arts and Photography Branch, Office of
Research Services</publisher-name>
<year iso-8601-date="2006">2006</year>
<comment>1 videocassette: 63 min., sound,
color, 1/2 in</comment>
</element-citation>
</ref>
...
...
<ref>
<mixed-citation publication-type="book"
publication-format="videocassette" publisher-type="gov">
<string-name><surname>Stryker</surname>,
<given-names>MP</given-names></string-name>.
<source>Making maps in the brain</source> [videocassette].
<publisher-loc>Bethesda (MD)</publisher-loc>:
<publisher-name>National Institutes of Health (US),
Medical Arts and Photography Branch, Office of Research
Services</publisher-name>; <year iso-8601-date="2006">2006</year>.
1 videocassette: 63 min., sound, color, 1/2 in.</mixed-citation>
</ref>
...