1. Selected data from field studies of pesticide runoff to surface waters Author/Creator: Capel, Paul D., author Publication/Creation: Sacramento, California : U.S. Department of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
2. Regional Aquifer-System Analysis Program of the U.S. Geological Survey--bibliography, 1978-86 Author/Creator: Weeks, John B., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1987 Resource Type: Book Access & Availability: Loading