APA Format
World Health Organization (WHO) . (). Cellmediated immune responses, TRS.423. : Geneva WHO 1969
MLA Format
World Health Organization (WHO) . Cellmediated immune responses, TRS.423. : Geneva WHO 1969,
Australian/Harvard Format
World Health Organization (WHO) . . Cellmediated immune responses, TRS.423. Geneva WHO 1969, 
Warning: These citations may not always be 100% accurate.