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Institution
Collection
Format
Subject
6
Water quality
4
Nutrient pollution of water
2
Streamflow Computer simulation
1
Agricultural pollution
1
Agriculture Environmental aspects
1
Biomass
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1
Herbicides Environmental aspects
1
Mill Creek Watershed (Lancaster County, Pa.)
1
Muddy Run Watershed (Lancaster County, Pa.)
1
Plant nutrients
1
Plant nutrients Environmental aspects
1
Streamflow
1
Streamflow History
1
Water Pollution
1
Water quality History
1
Water quality biological assessment
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Author
Geological Survey (U.S.)
Koerkle, Edward H.
7
Pennsylvania. Department of Environmental Protection
2
Delaware River Basin Commission
2
Delaware. Department of Natural Resources and Environmental Control
2
Senior, Lisa A.
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2
Susquehanna River Basin Commission
1
Bilger, Michael D.
1
Brightbill, Robin A.
1
Gustafson-Minnich, Linda C.
1
Nature Conservancy (U.S.)
1
Pennsylvania. Bureau of Land and Water Conservation
1
Reed, Lloyd A.
1
Stuckey, Marla H.
1
Takita, Charles S.
1
Ulrich, James
1
United States. Environmental Protection Agency
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