Não informado. (1957). Avian Diseases. American Association of Avian Pathologists.
Chicago-viite (17. p.)Não informado. Avian Diseases. kennett Square, Pa: American Association of Avian Pathologists, 1957.
MLA-viite (8. p.)Não informado. Avian Diseases. American Association of Avian Pathologists, 1957.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.