1. 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
2. Corn yield per acre, by counties of the United States, 1964 Author/Creator: United States. Bureau of the Census. Geography Division, cartographer Publication/Creation: Washington, D.C. : For sale by the Superintendent of Document, U.S. Government Printing Office, 1970 Resource Type: Map Access & Availability: Loading