Não informado. (1990). European Journal of Companion Animal Practice. Federation of European Companion Animal Veterinary Association.
Chicago-Zitierstil (17. Ausg.)Não informado. European Journal of Companion Animal Practice. Paris: Federation of European Companion Animal Veterinary Association, 1990.
MLA-Zitierstil (8. Ausg.)Não informado. European Journal of Companion Animal Practice. Federation of European Companion Animal Veterinary Association, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.