APA Format
World Health Organization (WHO) . (). Principles for the safety assessment of food additives and contaminants in food. : Geneva WHO 1987
MLA Format
World Health Organization (WHO) . Principles for the safety assessment of food additives and contaminants in food. : Geneva WHO 1987,
Australian/Harvard Format
World Health Organization (WHO) . . Principles for the safety assessment of food additives and contaminants in food. Geneva WHO 1987, 
Warning: These citations may not always be 100% accurate.