APA Format
World Health Organization (WHO) . (). Organization of mental health services in developing countris, TRS.564. : Geneva WHO 1975
MLA Format
World Health Organization (WHO) . Organization of mental health services in developing countris, TRS.564. : Geneva WHO 1975,
Australian/Harvard Format
World Health Organization (WHO) . . Organization of mental health services in developing countris, TRS.564. Geneva WHO 1975, 
Warning: These citations may not always be 100% accurate.