Não informado. (1955). A.M.A. Archives of Industrial Health. American Medical Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. A.M.A. Archives of Industrial Health. Chicago, Ill: American Medical Association, 1955.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. A.M.A. Archives of Industrial Health. American Medical Association, 1955.
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