Index of data tabulated from the 1930 census of population including unemployment.
Prepared under the supervision of Dr. Leon E. Truesdell, chief statistician for population.

APA Citation

United States. Bureau of the Census. (1940). Index of data tabulated from the 1930 census of population including unemployment. Washington: U.S. Govt. Print. Off..

MLA Citation

United States. Bureau of the Census. Index of Data Tabulated From the 1930 Census of Population Including Unemployment. Washington: U.S. Govt. Print. Off., 1940.

Warning: These citations may not always be complete (especially for serials).