APA Format
World Health Organization (WHO) . (). Pesticide application equipment for vector control, TRS.791. : Geneva WHO 1990
MLA Format
World Health Organization (WHO) . Pesticide application equipment for vector control, TRS.791. : Geneva WHO 1990,
Australian/Harvard Format
World Health Organization (WHO) . . Pesticide application equipment for vector control, TRS.791. Geneva WHO 1990, 
Warning: These citations may not always be 100% accurate.