Não informado. (2002). Zoo vet news. American Association of Zoo Veterinarians.
Chicagoスタイル(17版)引用形式Não informado. Zoo Vet News. Pennsylvania, Ind: American Association of Zoo Veterinarians, 2002.
MLA(8版)引用形式Não informado. Zoo Vet News. American Association of Zoo Veterinarians, 2002.
警告: この引用は必ずしも正確ではありません.