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1Published 1946Subjects: “...Water quality Mississippi River Watershed....”
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2by Paulsen, Carl G.Subjects: “...Water quality Mississippi River Watershed....”
Published 1950
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3Published 1948Subjects: “...Water quality Mississippi River Watershed....”
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4by Grover, Nathan Clifford, 1868-1956, Horton, A. H. (Albert Howard), 1875-1945, Hoyt, W. G. (William Glenn), 1886-1971Subjects: “...Water quality Mississippi River Watershed....”
Published 1917
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5by Grover, Nathan Clifford, 1868-1956Subjects: “...Water quality Mississippi River Watershed....”
Published 1936
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6by Grover, Nathan Clifford, 1868-1956Subjects: “...Water-supply Mississippi River Watershed....”
Published 1938
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7by Grover, Nathan Clifford, 1868-1956Subjects: “...Water-supply Mississippi River Watershed....”
Published 1938
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8by Grover, Nathan Clifford, 1868-1956Subjects: “...Water quality Mississippi River Watershed....”
Published 1940
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9by Paulsen, Carl G.Subjects: “...Water quality Mississippi River Watershed....”
Published 1941
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10by Follansbee, Robert, 1879-1952, Horton, A. H. (Albert Howard), 1875-1945, Jackson, H. J. (Howard J.)Subjects: “...Water quality Mississippi River Watershed....”
Published 1913
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11Published 1942Subjects: “...Water-supply Mississippi River Watershed....”
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12Published 1950Subjects: “...Water quality Mississippi River Watershed....”
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13Published 1951Subjects: “...Water quality Mississippi River Watershed....”
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14Published 1952Subjects: “...Water quality Mississippi River Watershed....”
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15Published 1954Subjects: “...Water quality Mississippi River Watershed....”
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16by Grover, Nathan Clifford, 1868-1956Subjects: “...Water resources development Mississippi River Watershed....”
Published 1936
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17Published 1914Subjects: “...Water-supply Mississippi River Valley....”
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18by Parker, Glenn L. (Glenn Lane), 1884-Subjects: “...Water quality Mississippi River Watershed....”
Published 1943
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19by Parker, Glenn L. (Glenn Lane), 1884-Subjects: “...Water quality Mississippi River Watershed....”
Published 1944
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20by Parker, Glenn L. (Glenn Lane), 1884-Subjects: “...Water quality Mississippi River Watershed....”
Published 1945
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