APA (7th ed.) Citation

O'Brien, R. (1992). The encyclopedia of drug abuse (2. ed.). Facts on File.

Chicago Style (17th ed.) Citation

O'Brien, Robert. The Encyclopedia of Drug Abuse. 2. ed. New York [u.a.]: Facts on File, 1992.

MLA (8th ed.) Citation

O'Brien, Robert. The Encyclopedia of Drug Abuse. 2. ed. Facts on File, 1992.