Estados Unidos. Bureau of the Census, & Estados Unidos. Bureau of the Census. (1949). Historical statistics of the United States 1789-1945: A suplement to the statistical abstract of the United States. Washington: U.S. Departamento of Commerce.
Chicago Style CitationEstados Unidos. Bureau of the Census, and Estados Unidos. Bureau of the Census. Historical Statistics of the United States 1789-1945: A Suplement to the Statistical Abstract of the United States. Washington: U.S. Departamento of Commerce, 1949.
MLA CitationEstados Unidos. Bureau of the Census, and Estados Unidos. Bureau of the Census. Historical Statistics of the United States 1789-1945: A Suplement to the Statistical Abstract of the United States. Washington: U.S. Departamento of Commerce, 1949.