1. Reconnaissance of ground-water resources of the Fort Peck Indian Reservation, northeastern Montana Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Helena, Montana : U.S. Department of the Interior, U.S. Geological Survey, 1991 Resource Type: Map Access & Availability: Loading
2. Regional assessment of nonpoint-source pesticide residues in ground water, San Joaquin Valley, California Author/Creator: Domagalski, Joseph L., author Publication/Creation: Sacramento, California : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
3. Regional evaluation of hydrologic factors and effects of pumping, St. Peter-Jordan aquifer, Iowa Author/Creator: Burkart, M. R., author Publication/Creation: Iowa City, Iowa : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading