1. Geochemistry of ground water in the Gulf Coast aquifer systems, south-central United States Author/Creator: Pettijohn, Robert A., author Publication/Creation: Austin, Texas : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
2. Geochemistry of ground-water in two sandstone aquifer systems in the northern Great Plains in parts of Montana, Wyoming, North Dakota, and South Dakota Author/Creator: Henderson, Thomas, 1957- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1985 Resource Type: Book Access & Availability: Loading