APA Format
World Health Organization (WHO) . (). Mechanism of action, safety and efficacy of intrauterine devices, TRS.753. : Geneva WHO 1987
MLA Format
World Health Organization (WHO) . Mechanism of action, safety and efficacy of intrauterine devices, TRS.753. : Geneva WHO 1987,
Australian/Harvard Format
World Health Organization (WHO) . . Mechanism of action, safety and efficacy of intrauterine devices, TRS.753. Geneva WHO 1987, 
Warning: These citations may not always be 100% accurate.