APA Format
World Health Organization (WHO) . (). Prevention and control of intestional parasitic infections, TRS.749. : Geneva WHO 1987
MLA Format
World Health Organization (WHO) . Prevention and control of intestional parasitic infections, TRS.749. : Geneva WHO 1987,
Australian/Harvard Format
World Health Organization (WHO) . . Prevention and control of intestional parasitic infections, TRS.749. Geneva WHO 1987, 
Warning: These citations may not always be 100% accurate.