Não informado. (1939). Bulletin of the History of Medicine. American Association of the History of Medicine.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the History of Medicine. Baltimore, Md: American Association of the History of Medicine, 1939.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the History of Medicine. American Association of the History of Medicine, 1939.
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