APA (7e ed.) Bronvermelding
United Nations. Office for Drug Control and Crime Prevention. (2001). Global illicit drug trends.
Chicago (17e ed.) Bronvermelding
United Nations. Office for Drug Control and Crime Prevention. Global Illicit Drug Trends. New York, 2001.
MLA (9e ed.) Bronvermelding
United Nations. Office for Drug Control and Crime Prevention. Global Illicit Drug Trends. 2001.
Let op: Deze citaties zijn niet altijd 100% accuraat.