Não informado. (1878). Statistical Abstract of the United States. U.S. Department of Commerce, Bureau of the Census.
Citace podle Chicago (17th ed.)Não informado. Statistical Abstract of the United States. Washington: U.S. Department of Commerce, Bureau of the Census, 1878.
Citace podle MLA (8th ed.)Não informado. Statistical Abstract of the United States. U.S. Department of Commerce, Bureau of the Census, 1878.
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