APA Format
World Health Organization (WHO) . (). Specifications for the identity and purity of food additives and their toxicological evaluation: some emulsifiers and certain other substances, TRS.373. : Geneva WHO 1967
MLA Format
World Health Organization (WHO) . Specifications for the identity and purity of food additives and their toxicological evaluation: some emulsifiers and certain other substances, TRS.373. : Geneva WHO 1967,
Australian/Harvard Format
World Health Organization (WHO) . . Specifications for the identity and purity of food additives and their toxicological evaluation: some emulsifiers and certain other substances, TRS.373. Geneva WHO 1967, 
Warning: These citations may not always be 100% accurate.