APA Format
World Health Organization (WHO) . (). International drug monitoring: the role of national centres, TRS.498. : Geneva WHO 1972
MLA Format
World Health Organization (WHO) . International drug monitoring: the role of national centres, TRS.498. : Geneva WHO 1972,
Australian/Harvard Format
World Health Organization (WHO) . . International drug monitoring: the role of national centres, TRS.498. Geneva WHO 1972, 
Warning: These citations may not always be 100% accurate.