Não informado. (1959). Advances in small animal practice. British Small Animal Veterinary Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Advances in Small Animal Practice. Oxford, Inglaterra: British Small Animal Veterinary Association, 1959.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Advances in Small Animal Practice. British Small Animal Veterinary Association, 1959.
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