Cita APA (7a ed.)

United States. Department of Commerce. Bureau of the Census. (1931). Fifteenth Census of the United States: 1930. Gov. Print. off..

Cita Chicago Style (17a ed.)

United States. Department of Commerce. Bureau of the Census. Fifteenth Census of the United States: 1930. Washington: Gov. Print. off., 1931.

Cita MLA (8a ed.)

United States. Department of Commerce. Bureau of the Census. Fifteenth Census of the United States: 1930. Gov. Print. off., 1931.