Não informado. (1933). Population. International Union for the Scientific Investigation of Population.
Chicagoスタイル(17版)引用形式Não informado. Population. London: International Union for the Scientific Investigation of Population, 1933.
MLA(8版)引用形式Não informado. Population. International Union for the Scientific Investigation of Population, 1933.
警告: この引用は必ずしも正確ではありません.