APA Format
World Health Organization (WHO) . (). Specifications for the identity and purity of food additives and their toxicological evaluation: some antibiotics, TRS.430. : Geneva WHO 1969
MLA Format
World Health Organization (WHO) . Specifications for the identity and purity of food additives and their toxicological evaluation: some antibiotics, TRS.430. : Geneva WHO 1969,
Australian/Harvard Format
World Health Organization (WHO) . . Specifications for the identity and purity of food additives and their toxicological evaluation: some antibiotics, TRS.430. Geneva WHO 1969, 
Warning: These citations may not always be 100% accurate.