Fifteenth census of the United States: 1930 :
Unemployment /
U. S. Department of Commerce, Bureau of the Census.

APA Citation

United States. Bureau of the Census., Arner, G. B. Louis (George Byron Louis)., Truesdell, L. E. (Leon Edgar). (19311932). Fifteenth census of the United States: 1930: Unemployment. Washington, D.C.: United States Government Printing Office.

MLA Citation

United States. Bureau of the Census, George B. Louis (George Byron Louis) Arner, and Leon E. (Leon Edgar) Truesdell. Fifteenth Census of the United States: 1930: Unemployment. Washington, D.C.: United States Government Printing Office, 19311932.