O'Brien, R. (1992). The encyclopedia of drug abuse (2. ed.). Facts on File.
Chicago Style (17th ed.) CitationO'Brien, Robert. The Encyclopedia of Drug Abuse. 2. ed. New York [u.a.]: Facts on File, 1992.
MLA (9th ed.) CitationO'Brien, Robert. The Encyclopedia of Drug Abuse. 2. ed. Facts on File, 1992.
Warning: These citations may not always be 100% accurate.