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. 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
4. Standard metropolitan statistical areas of the United States and Puerto Rico, 1967 Author/Creator: United States. Bureau of the Census. Geography Division, cartography Publication/Creation: Washington, D.C. : For sale by the Superintendant of Documents, U.S. Government Print Office Resource Type: Map Access & Availability: Loading
5. Standard metropolitan statistical areas of the United States and Puerto Rico, 1963 Author/Creator: United States. Bureau of the Census Publication/Creation: [Washington, D.C.] : Bureau of the Census : U.S. G.P.O., [1964] Resource Type: Map Access & Availability: Loading