Cita APA (7th ed.)
ebrary, Inc. (2003). WHO Expert Committee on Drug Dependence: Thirty-third report. World Health Organization.
Cita Chicago (17th ed.)
ebrary, Inc. WHO Expert Committee on Drug Dependence: Thirty-third Report. Geneva: World Health Organization, 2003.
Cita MLA (9th ed.)
ebrary, Inc. WHO Expert Committee on Drug Dependence: Thirty-third Report. World Health Organization, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.