1. External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network, 1997-99 Author/Creator: Gordon, J. D. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading
2. External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network, 1997-99 Author/Creator: Gordon, J. D. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading
3. Evaluation of candidate rain gages for upgrading precipitation measurement tools for the National Atmospheric Deposition Program Author/Creator: Gordon, J. D. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading
4. External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network, 1995-96 Author/Creator: Gordon, J. D. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 1999 Resource Type: Book Access & Availability: Loading
5. USGS tracks acid rain Author/Creator: Gordon, J. D. Publication/Creation: [Reston, Va.] : U.S. Geological Survey, [1995] Resource Type: Book Access & Availability: Loading