Não informado. (1958). Epidemiological bulletin. Department of National Health and Welfare, Epidemiological Division.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Epidemiological Bulletin. Ottawa: Department of National Health and Welfare, Epidemiological Division, 1958.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Epidemiological Bulletin. Department of National Health and Welfare, Epidemiological Division, 1958.
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