Não informado. (1930). Iowa veterinarian. Iowa Veterinary Medical Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Iowa Veterinarian. Ames, Iowa: Iowa Veterinary Medical Association, 1930.
Lua MLA (8ú heag.)Não informado. Iowa Veterinarian. Iowa Veterinary Medical Association, 1930.
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