Current population reports.
Series P-23,
Technical studies.

APA Citation

United States. Bureau of the Census., United States. Bureau of Labor Statistics. (1968). Current population reports. Washington, D.C.: U.S. Dept. of Commerce, Bureau of the Census : For sale by the Supt. of Docs., U.S. G.P.O..

MLA Citation

United States. Bureau of the Census, and United States. Bureau of Labor Statistics. Current Population Reports. Washington, D.C.: U.S. Dept. of Commerce, Bureau of the Census : For sale by the Supt. of Docs., U.S. G.P.O., 1968.