Household and family characteristics
March 1987,March 1990 and 1989,March 1992. - Washington : U.S. Dept. of Commerce, Social and Economic Statistics Administration, Bureau of the Census : for sale by the Supt. of Docs., U.S. Govt. Print. Off. , 1988-. - (Current population reports ; . Population characteristics : Series P-20, no. 424, 447, 467)