1. Water-level changes in the High Plains Aquifer--predevelopment to 1995 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 1997 Resource Type: Map Access & Availability: Loading
2. Water-level changes in the High Plains aquifer, 1980 to 1995 Author/Creator: McGuire, Virginia L. Publication/Creation: Lincoln, NE : U.S. Dept. of the Interior, U.S. Geological Survey, [1997] Resource Type: Book Access & Availability: Loading