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1by Keighton, W. B. (Walter B.)Subjects: “...Water quality Pennsylvania Bristol....”
Published 1965
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2Water-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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3Bacteriological 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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4by Williams, Donald R.Subjects: “...Water quality Pennsylvania Raystown Lake....”
Published 1978
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5by Fishel, David K.Subjects: “...Water quality Pennsylvania Swatara Creek....”
Published 1986
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6by Fishel, David K.Subjects: “...Water quality Pennsylvania....”
Published 1986
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7by Barker, James L., 1936-Subjects: “...Water quality Pennsylvania Wayne County....”
Published 1989
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8by Koerkle, Edward H.Subjects: “...Water quality Pennsylvania Lancaster County....”
Published 2000
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9by Low, Dennis J. (Dennis James)Subjects: “...Water quality Pennsylvania....”
Published 2006
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10by Fishel, David K.Subjects: “...Water quality Pennsylvania Lebanon County....”
Published 1988
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11by Pederson, G. L.Subjects: “...Water quality Pennsylvania....”
Published 1980
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12by Pederson, G. L.Subjects: “...Water quality Pennsylvania....”
Published 1980
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13by Ward, Janice R.Subjects: “...Water quality Pennsylvania....”
Published 1987
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14Published 1990Subjects: “...Water quality Pennsylvania....”
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15by Koester, Harry E.Subjects: “...Water quality Pennsylvania....”
Published 1980
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16by Barker, James L., 1936-Subjects: “...Water quality Pennsylvania....”
Published 1984
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17by Hainly, Robert A.Subjects: “...Water quality Pennsylvania Susquehanna River, West Branch....”
Published 1989
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18by Hainly, Robert A.Subjects: “...Water quality Pennsylvania Susquehanna River, West Branch....”
Published 1993
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19Published 1992Subjects: “...Water quality Pennsylvania Measurement....”
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20by Stuckey, Marla H.Subjects: “...Water quality Pennsylvania History....”
Published 2012
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