APA (7th ed.) Citation

United States. Bureau of the Census. (1999). Population of U.S. in 1880. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of the Census. Population of U.S. in 1880. Washington, D.C.: [s.n.], 1999.

MLA (8th ed.) Citation

United States. Bureau of the Census. Population of U.S. in 1880. [s.n.], 1999.

Warning: These citations may not always be 100% accurate.