Social and economic characteristics of the metropolitan and nonmetropolitan population, 1977 and 1970 - Littman, Mark S; Jeffries, Brenda R; United States. (U.S. Dept. of Commerce, Bureau of the Census : for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1978)
Keywords: United States / Economic conditions; United States / Social conditions; United States / Population / Statistics