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1
Water quality in the lower Susquehanna River Basin, Pennsylvania and Maryland, 1992-95 /
Published 1998

Government Document Book
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2
Water quality in the Red River of the North Basin, Minnesota, North Dakota, and South Dakota, 1992-95 /
Published 1998

Government Document Book
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5
Water quality in the western Lake Michigan drainages, Wisconsin and Michigan, 1992-95 /
Published 1998

Government Document Book
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6
Agricultural pesticides found in ground water of the Quincy and Pasco basins /
by Roberts, L. M. (USGS)
Published 1996

Government Document Book
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7
Are agricultural pesticides in surface waters of the central Columbia plateau? /
by Wagner, R. J. (USGS)
Published 1996

Government Document Book
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10
Nutrients in the nation's waters : too much of a good thing? /
by Mueller, David K.
Published 1996

Government Document Book
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