1. 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
2. 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
3. Relation of fracture systems to transmissivity of coal and overburden aquifers in Preston County, West Virginia Author/Creator: Hobba, W. A. (William A.), author Publication/Creation: Morgantown, West Virginia : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading