Não informado. (1878). Statistical Abstract of the United States. U.S. Department of Commerce, Bureau of the Census.
Citação do estilo Chicago (17ª ed.)Não informado. Statistical Abstract of the United States. Washington: U.S. Department of Commerce, Bureau of the Census, 1878.
Citação MLA (8ª ed.)Não informado. Statistical Abstract of the United States. U.S. Department of Commerce, Bureau of the Census, 1878.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.