APA Format
World Health Organization (WHO) . (). Community involvement in health development: challenging health services, TRS.809. : Geneva WHO 1991
MLA Format
World Health Organization (WHO) . Community involvement in health development: challenging health services, TRS.809. : Geneva WHO 1991,
Australian/Harvard Format
World Health Organization (WHO) . . Community involvement in health development: challenging health services, TRS.809. Geneva WHO 1991, 
Warning: These citations may not always be 100% accurate.