Fifteenth census of the United States: 1930. Census of agriculture. The Negro farmer in the United States.

MLA

United States. Fifteenth census of the United States: 1930. Census of agriculture. The Negro farmer in the United States. Washington : U.S. Govt. print. off., 1933.

APA

United States. (1933). Fifteenth census of the United States: 1930. Census of agriculture. The Negro farmer in the United States. Washington : U.S. Govt. print. off..

Chicago

United States. Fifteenth census of the United States: 1930. Census of agriculture. The Negro farmer in the United States. Washington : U.S. Govt. print. off., 1933.