1. Metropolitan areas (MSAs, CMSAs, and PMSAs) June 30, 1990 Author/Creator: United States. Bureau of the Census. Geography Division Publication/Creation: [Washington, D.C.] : The Bureau : For sale by the Supt. of Docs., U.S. G.P.O., 1990 Resource Type: Map Access & Availability: Loading
2. Metropolitan statistical areas : (CMSAs, PMSAs, and MSAs) June 30, 1988 Author/Creator: United States. Bureau of the Census. Geography Division Publication/Creation: For sale by the Supt. of Docs., U.S. G.P.O.. Resource Type: Map Access & Availability: Loading
3. 1990 district offices (March, 1988) : [United States Bureau of the Census] Author/Creator: United States. Bureau of the Census. Geography Division Publication/Creation: [Washington, D.C.] : Bureau of the Census, [1988] Resource Type: Map Access & Availability: Loading
4. 1990 district offices (December, 1988) Author/Creator: United States. Bureau of the Census. Geography Division Publication/Creation: [Washington, D.C.] : The Bureau, [1988] Resource Type: Map Access & Availability: Loading
5. Congressional districts of the 100th Congress of the United States (January 1987 to January 1989) Author/Creator: United States. Bureau of the Census. Geography Division Publication/Creation: [Washington, D.C.] : Bureau of the Census : For sale by the Supt., of Docs., U.S. G.P.O., [1986] Resource Type: Map Access & Availability: Loading
6. Metropolitan statistical areas (CMSAs, PSMAs, and MSAs) June 30, 1985 Author/Creator: United States. Bureau of the Census. Geography Division Publication/Creation: Washington, D.C. : The Geography Division, 1985 Resource Type: Map Access & Availability: Loading