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Davis, Ryan C.
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Nutrient pollution of water
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Alliance for the Chesapeake Bay
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A snapshot evaluation of stream environmental quality in the Little Conestoga Creek basin, Lancaster County, Pennsylvania
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Loper, Connie A.
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[Lemoyne, Pa.] : U.S. Deptartment of the Interior, U.S. Geological Survey, 1998.
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https://purl.fdlp.gov/GPO/gpo183430
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