World Health Organization. (2000). Evaluation of certain veterinary drug residues in food. World Health Organization.
Chicago Style aipamenaWorld Health Organization. Evaluation of Certain Veterinary Drug Residues in Food. Geneva: World Health Organization, 2000.
MLA aipamenaWorld Health Organization. Evaluation of Certain Veterinary Drug Residues in Food. World Health Organization, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.