APA Format
World Health Organization (WHO) . (). WHO expert committee on addiction producing drugs, TRS.273. : Geneva WHO 1964
MLA Format
World Health Organization (WHO) . WHO expert committee on addiction producing drugs, TRS.273. : Geneva WHO 1964,
Australian/Harvard Format
World Health Organization (WHO) . . WHO expert committee on addiction producing drugs, TRS.273. Geneva WHO 1964, 
Warning: These citations may not always be 100% accurate.