Não informado. (1958). Epidemiological bulletin. Department of National Health and Welfare, Epidemiological Division.
Chicago (17e ed.) BronvermeldingNão informado. Epidemiological Bulletin. Ottawa: Department of National Health and Welfare, Epidemiological Division, 1958.
MLA (8e ed.) BronvermeldingNão informado. Epidemiological Bulletin. Department of National Health and Welfare, Epidemiological Division, 1958.
Let op: Deze citaties zijn niet altijd 100% accuraat.