Não informado. (1971). Veterinary Pathology. American College of Veterinary Pathologists.
Lua i Stíl Chicago (17ú heag.)Não informado. Veterinary Pathology. Washington: American College of Veterinary Pathologists, 1971.
Lua MLA (8ú heag.)Não informado. Veterinary Pathology. American College of Veterinary Pathologists, 1971.
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