Opie, E. L. (1903). Disease of the pancreas: Its cause and nature. J.B. Lippincott Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOpie, Eugene L. Disease of the Pancreas: Its Cause and Nature. Philadelphia, London: J.B. Lippincott Company, 1903.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOpie, Eugene L. Disease of the Pancreas: Its Cause and Nature. J.B. Lippincott Company, 1903.
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