Não informado. (1958). Epidemiological bulletin. Department of National Health and Welfare, Epidemiological Division.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Epidemiological Bulletin. Ottawa: Department of National Health and Welfare, Epidemiological Division, 1958.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Epidemiological Bulletin. Department of National Health and Welfare, Epidemiological Division, 1958.
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