by J. D Gordon
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U.S. Geological Survey quality-assurance...
Evaluation of candidate rain gages for u...
Laboratory performance in the Sediment L...
External quality-assurance results for t...
Hydrologic data for urban studies in the...
Summary of the National Atmospheric Depo...
Executive summary--application of a hydr...
Aquatic Effects of Acidic Deposition
Stability of nitrate-ion concentrations ...
Acidic deposition and forest soils
Acidity in United Kingdom fresh waters