APA (7th ed.) Citation
O'Brien, R., & Cohen, S. (1984). The Encyclopedia of drug abuse: Robert O'Brien and Sidney Cohen. Facts On File.
Chicago Style (17th ed.) Citation
O'Brien, Robert, and Sidney Cohen. The Encyclopedia of Drug Abuse: Robert O'Brien and Sidney Cohen. New York [usw.]: Facts On File, 1984.
MLA (9th ed.) Citation
O'Brien, Robert, and Sidney Cohen. The Encyclopedia of Drug Abuse: Robert O'Brien and Sidney Cohen. Facts On File, 1984.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.