APA
WHO, . (1998). Evaluation of certain veterinary drug residues in food. auth., Geneva: .
Chicago
WHO, . 1998. Evaluation of certain veterinary drug residues in food. auth., Geneva: .
Harvard
WHO, . (1998). Evaluation of certain veterinary drug residues in food. auth., Geneva: .
MLA
WHO, . Evaluation of certain veterinary drug residues in food. auth., Geneva: . 1998.