1. Water-level changes in the High Plains aquifer--predevelopment to 1992 Author/Creator: Dugan, Jack T., author Publication/Creation: Lincoln, Nebraska : U.S. Department of the Interior, U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading
2. Water-level changes in the High Plains Aquifer--predevelopment to 1990 Author/Creator: Dugan, Jack T., author Publication/Creation: Lincoln, Nebraska : U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading
3. Effects of climate, vegetation, and soils on consumptive water use and ground-water recharge to the central midwest regional aquifer system, mid-continent United States Author/Creator: Dugan, Jack T., author Publication/Creation: Lincoln, Nebraska : U.S. Geological Survey, 1985 Resource Type: Book Access & Availability: Loading