Não informado. (1978). Veterinary surgery. American College of Veterinary Surgeons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Veterinary Surgery. Philadelphia, Pa: American College of Veterinary Surgeons, 1978.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Veterinary Surgery. American College of Veterinary Surgeons, 1978.
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