Não informado. (2004). World population. U.S. Department of Commerce, Bureau of the Census.
Style de citation Chicago (17e éd.)Não informado. World Population. Washington: U.S. Department of Commerce, Bureau of the Census, 2004.
Style de citation MLA (8e éd.)Não informado. World Population. U.S. Department of Commerce, Bureau of the Census, 2004.
Attention : ces citations peuvent ne pas être correctes à 100%.