Não informado. (1878). Statistical Abstract of the United States. U.S. Department of Commerce, Bureau of the Census.
Chicago-Zitierstil (17. Ausg.)Não informado. Statistical Abstract of the United States. Washington: U.S. Department of Commerce, Bureau of the Census, 1878.
MLA-Zitierstil (8. Ausg.)Não informado. Statistical Abstract of the United States. U.S. Department of Commerce, Bureau of the Census, 1878.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.