Não informado. (2002). Zoo vet news. American Association of Zoo Veterinarians.
Style de citation Chicago (17e éd.)Não informado. Zoo Vet News. Pennsylvania, Ind: American Association of Zoo Veterinarians, 2002.
Style de citation MLA (8e éd.)Não informado. Zoo Vet News. American Association of Zoo Veterinarians, 2002.
Attention : ces citations peuvent ne pas être correctes à 100%.