Não informado. Yearbook of veterinary medicine. Year Book Medical Publishers.
Chicago-referens (17:e uppl.)Não informado. Yearbook of Veterinary Medicine. Chicago, Ill: Year Book Medical Publishers.
MLA-referens (8:e uppl.)Não informado. Yearbook of Veterinary Medicine. Year Book Medical Publishers.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.