1970 census of population. Volume 1, Characteristics of the population. Part 9, Delaware

MLA

United States. 1970 census of population. Volume 1, Characteristics of the population. Part 9, Delaware. [Washington, D.C.] : U.S. Department of Commerce, Social and Economic Statistics Administration, Bureau of the Census, 1973.

APA

United States. (1973). 1970 census of population. Volume 1, Characteristics of the population. Part 9, Delaware. [Washington, D.C.] : U.S. Department of Commerce, Social and Economic Statistics Administration, Bureau of the Census.

Chicago

United States. 1970 census of population. Volume 1, Characteristics of the population. Part 9, Delaware. [Washington, D.C.] : U.S. Department of Commerce, Social and Economic Statistics Administration, Bureau of the Census, 1973.