List American Psychological Association as the author, followed by a period.
List the year of publication as 1994. The year of publication should be enclosed in parentheses and followed by a period that falls outside the parentheses.
List Diagnostic and Statistical Manual of Mental Disorders as the title. This should be underlined.
Indicate that it is the fourth edition of the DSM by placing the designation 4th ed. after the title, enclosed in parentheses and followed by a period.
List Washington, D.C. as the place of publication, followed by a colon.
List the publisher as American Psychological Association. (The author and publisher are the same in this instance.) End the citation with a period.