APA (7th ed.) Citation

United Nations Environment Programme & Clarke, H. (1992). The Contamination of food. United Nations Environment Programme.

Chicago Style (17th ed.) Citation

United Nations Environment Programme and Hazel Clarke. The Contamination of Food. Nairobi, Kenya: United Nations Environment Programme, 1992.

MLA (9th ed.) Citation

United Nations Environment Programme and Hazel Clarke. The Contamination of Food. United Nations Environment Programme, 1992.