U.S. Department of Commerce, Bureau of the Census. American Housing Survey: 1989 Metropolitan Sample : Reference Manual for Field Representatives. Washington, DC: U.S. Department of Commerce, Bureau of the Census, 1989.

U.S. Department of Commerce, Bureau of the Census. American Housing Survey: 1989 Metropolitan Sample : Reference Manual for Field Representatives. Washington, DC: U.S. Department of Commerce, Bureau of the Census, 1989.