APA (7th ed.) Citation

United States. Bureau of the Census. (1942). Sixteenth Census of the United States: 1940, Areas of United States. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of the Census. Sixteenth Census of the United States: 1940, Areas of United States. [Washington]: [s.n.], 1942.

MLA (9th ed.) Citation

United States. Bureau of the Census. Sixteenth Census of the United States: 1940, Areas of United States. [s.n.], 1942.

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