Não informado. (2004). Animal and public health reports. Swiss Federal Veterinary Office.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Animal and Public Health Reports. Bern: Swiss Federal Veterinary Office, 2004.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Animal and Public Health Reports. Swiss Federal Veterinary Office, 2004.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.