1. 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
2. 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