by Peterson, David A.
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Invertebrate communities of small stream...
Streamflow recharge to the Madison Limes...
Chemical and biological indicators of nu...
Element concentrations in bed sediment o...
Organic compounds and trace elements in ...
Reconnaissance investigation of water qu...
Water-quality assessment of the central ...
Water-quality assessments in the nation'...
NAWQA, National Water-Quality Assessment...
National Water-Quality Assessment Progra...