To cite the whole book in your reference section, use this format:
American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Arlington, VA: American Psychiatric Publishing.
The basic in-text citation should look like this:
(American Psychiatric Association, 2013).
Additional information on citing the DSM-5, including in-text citation options, citing a section of the DSM-5, and citing the online book or mobile app, is available at the American Psychological Association's APA Style Blog: http://blog.apastyle.org/apastyle/2013/08/how-to-cite-the-dsm5-in-apa-style.html
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