Não informado. (1933). Population. International Union for the Scientific Investigation of Population.
Style de citation Chicago (17e éd.)Não informado. Population. London: International Union for the Scientific Investigation of Population, 1933.
Style de citation MLA (8e éd.)Não informado. Population. International Union for the Scientific Investigation of Population, 1933.
Attention : ces citations peuvent ne pas être correctes à 100%.