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1Published 2000Subjects: “...Water quality Government policy New York (State)...”
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2Subjects: “...Water quality Susquehanna River Watershed....”
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3Published 1997Subjects: “...Water quality Research Susquehanna River Watershed....”
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4Published 2001Subjects: “...Water quality Pennsylvania....”
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5by Siemion, JasonSubjects: “...Water quality New York (State)...”
Published 2010
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6by Williams, Donald R.Subjects: “...Water quality Pennsylvania Raystown Lake....”
Published 1978
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7by Keighton, W. B. (Walter B.)Subjects: “...Water quality Pennsylvania Bristol....”
Published 1965
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8Water-quality assessment of Francis E. Walter reservoir, Luzerne and Carbon Counties, Pennsylvania /by Barker, James L., 1936-Subjects: “...Water quality Pennsylvania Luzerne County....”
Published 1983
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10Bacteriological water quality of Tulpehocken Creek basin, Berks and Lebanon Counties, Pennsylvania /by Barker, James L., 1936-Subjects: “...Water quality Pennsylvania Berks County....”
Published 1978
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11by Senior, Lisa A.Subjects: “...Water quality Pennsylvania....”
Published 2003
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12Published 1972Subjects: “...Water quality Standards Pennsylvania....”
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13by Becher, Albert E.Subjects: “...Water quality Pennsylvania....”
Published 1989
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14Subjects: “...Water quality Pennsylvania Susquehanna River, West Branch....”
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15Subjects: “...Water quality Pennsylvania Susquehanna River, West Branch....”
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16by Fishel, David K.Subjects: “...Water quality Pennsylvania Swatara Creek....”
Published 1986
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17by Fishel, David K.Subjects: “...Water quality Pennsylvania....”
Published 1986
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18by Barker, James L., 1936-Subjects: “...Water quality Pennsylvania Wayne County....”
Published 1989
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19by Koerkle, Edward H.Subjects: “...Water quality Pennsylvania Lancaster County....”
Published 2000
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20by Low, Dennis J. (Dennis James)Subjects: “...Water quality Pennsylvania....”
Published 2006
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