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1by McFarland, E. RandolphSubjects: “...Groundwater Quality Virginia History....”
Published 2010
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2by Stuckey, Marla H.Subjects: “...Streamflow Pennsylvania History....”
Published 2012
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3by Kirkemo, HaroldSubjects: “...Gold History....”
Published 1996
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4Published 1915Subjects: “...History....”
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5by Mast, M. AlisaSubjects: “...Hydrology Middle West History....”
Published 1999
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6by Rabbitt, Mary C.Subjects: “...Geological Survey (U.S.) History....”
Published 1989
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7Published 2000Subjects: “...Geological Survey (U.S.) History....”
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8by Shaffer, KimberlySubjects: “...Stream measurements Ohio History....”
Published 2000
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9by Rabbitt, Mary C.Subjects: “...Geological Survey (U.S.) History....”
Published 1979
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10by Soullière, Laura E.Subjects: “...National parks and reserves United States History....”
Published 1995
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11by Lombard, PamelaSubjects: “...Floods Maine Aroostook County History....”
Published 2010
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12by Tortorelli, Robert L.Subjects: “...Droughts Oklahoma History....”
Published 2008
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13Published 1927Subjects: “...History....”
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14Published 1928Subjects: “...History....”
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15Published 1929Subjects: “...History....”
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16Published 1884Subjects: “...History....”
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17Published 1933Subjects: “...History....”
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18Published 1915Subjects: “...History....”
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19Published 1924Subjects: “...History....”
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20Published 1925Subjects: “...History....”
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