APA Format
World Health Organization (WHO) . (). 1971 1972 evaluations of some pesticide residues in food, the monographs: TRS.No.1 2. : Geneva WHO 1972, 1973
MLA Format
World Health Organization (WHO) . 1971 1972 evaluations of some pesticide residues in food, the monographs: TRS.No.1 2. : Geneva WHO 1972, 1973,
Australian/Harvard Format
World Health Organization (WHO) . . 1971 1972 evaluations of some pesticide residues in food, the monographs: TRS.No.1 2. Geneva WHO 1972, 1973, 
Warning: These citations may not always be 100% accurate.