Não informado. (1980). Veterinary research communications. Elsevier Scientific Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Veterinary Research Communications. Amsterdam: Elsevier Scientific Publishing, 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Veterinary Research Communications. Elsevier Scientific Publishing, 1980.
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