Não informado. (1948). Demographic Yearbook. United Nations, Department of Economic and Social Affairs, Statistical Office.
Style de citation Chicago (17e éd.)Não informado. Demographic Yearbook. New York: United Nations, Department of Economic and Social Affairs, Statistical Office, 1948.
Style de citation MLA (8e éd.)Não informado. Demographic Yearbook. United Nations, Department of Economic and Social Affairs, Statistical Office, 1948.
Attention : ces citations peuvent ne pas être correctes à 100%.