APA Format
World Health Organization (WHO) . (). WHO expert committee on drug dependence: TRS.903. : Geneva WHO 2001
MLA Format
World Health Organization (WHO) . WHO expert committee on drug dependence: TRS.903. : Geneva WHO 2001,
Australian/Harvard Format
World Health Organization (WHO) . . WHO expert committee on drug dependence: TRS.903. Geneva WHO 2001, 
Warning: These citations may not always be 100% accurate.