APA Format
World Health Organization (WHO) . (). Health factors involved in working under conditions of heat stress, TRS.412. : Geneva WHO 1969
MLA Format
World Health Organization (WHO) . Health factors involved in working under conditions of heat stress, TRS.412. : Geneva WHO 1969,
Australian/Harvard Format
World Health Organization (WHO) . . Health factors involved in working under conditions of heat stress, TRS.412. Geneva WHO 1969, 
Warning: These citations may not always be 100% accurate.