Q. How do I cite the Diagnostic and Statistical Manual of Mental Disorders (DSM) in APA style?

For the 6th edition of APA, the APA Style Blog provides helpful information on citing the DSM:

http://blog.apastyle.org/apastyle/2011/07/how-to-cite-the-dsm-in-apa-style.html

At the bottom of the entry linked above, you will find an update and link related specifically to citing the DSM-5.

For the 7th edition of APA, the APA Style website offers guidance on citing the DSM:

https://apastyle.apa.org/style-grammar-guidelines/references/examples#dsm