APA (7th ed.) Citation

(1993). 1990 census of population. U.S. Dept. of the Commerce, Economics and Statistics Administration, Bureau of the Census : For sale by the Supt. of Docs., U.S. G.P.O..

Chicago Style (17th ed.) Citation

1990 Census of Population. Washington, DC: U.S. Dept. of the Commerce, Economics and Statistics Administration, Bureau of the Census : For sale by the Supt. of Docs., U.S. G.P.O., 1993.

MLA (8th ed.) Citation

1990 Census of Population. U.S. Dept. of the Commerce, Economics and Statistics Administration, Bureau of the Census : For sale by the Supt. of Docs., U.S. G.P.O., 1993.