1. Pesticides in streams of the United States-initial results from the National Water-Quality Assessment Program Author/Creator: Larson, Steven J., author Publication/Creation: Sacramento, California : U.S. Geological Survey, 1999 Resource Type: Book Access & Availability: Loading
2. Precipitation-runoff modeling system : user's manual Author/Creator: Leavesley, G. H., author Publication/Creation: Denver, Colorado : United States Department of the Interior, Geological Survey, 1983 Resource Type: Book Access & Availability: Loading
3. Precision and bias of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network : 1983 and January 1980 through September 1984 Author/Creator: Schroder, L. J., author Publication/Creation: Lakewood, Colorado : U.S. Geological Survey, 1985 Resource Type: Book Access & Availability: Loading
4. Precision of the measurement of pH and specific conductance at National Atmospheric Deposition Program monitoring sites, October 1981-November 1983 Author/Creator: Schroder, L. J., author Publication/Creation: Lakewood, Colorado : U.S. Geological Survey, 1985 Resource Type: Book Access & Availability: Loading
5. Proceedings of the Advanced Seminar on One-dimensional, Open-Channel Flow and Transport Modeling : June 15-18, 1987, National Space Technology Laboratory, Bay St. Louis, Mississippi Author/Creator: Advanced Seminar on One-dimensional, Open-Channel Flow and Transport Modeling : National Space Technology Laboratory), (1987 : author. author Publication/Creation: Reston, Virginia : U.S. Geological Survey, 1989 Resource Type: Book Access & Availability: Loading
6. Programs and analytical methods for the U.S. Geological Survey acid rain quality-assurance project Author/Creator: See, Randolph B., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading