(1973). Characteristics of the population by ethnic origin: March 1972 and 1971. [Washington, D.C.]: U.S. Dept. of Commerce, Bureau of the Census : for sale by the Supt. of Docs., U.S. Govt. Print. Off..
Chicago Style CitationCharacteristics of the Population By Ethnic Origin: March 1972 and 1971. [Washington, D.C.]: U.S. Dept. of Commerce, Bureau of the Census : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1973.
MLA CitationCharacteristics of the Population By Ethnic Origin: March 1972 and 1971. [Washington, D.C.]: U.S. Dept. of Commerce, Bureau of the Census : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1973.