United States. Bureau of the Census. (1974). Percent change in the Negro population by counties of the United States: 1960 to 1970. U.S. Govt. Print. Off..
Chicago Style (17th ed.) CitationUnited States. Bureau of the Census. Percent Change in the Negro Population by Counties of the United States: 1960 to 1970. Washington: U.S. Govt. Print. Off., 1974.
MLA (9th ed.) CitationUnited States. Bureau of the Census. Percent Change in the Negro Population by Counties of the United States: 1960 to 1970. U.S. Govt. Print. Off., 1974.
Warning: These citations may not always be 100% accurate.