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1Published 1985“...U.S. Geological Survey :...”
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2Published 1991“...U.S. Geological Survey ;...”
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3Published 1991“...U.S. Geological Survey ;...”
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4by Schaefer, Donald H.“...U.S. Geological Survey ;...”
Published 1992
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5by Scheirer, Daniel S.“...U.S. Geological Survey,...”
Published 2006
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6
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7by Scott, Robert B.“...U.S. Geological Survey,...”
Published 2006
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8by Jayko, A. S.“...U.S. Geological Survey,...”
Published 2007
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9by Fernald, Arthur T. (Arthur Thomas), 1917-“...U.S. Geological Survey,...”
Published 1968
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10Published 1977“...U.S. Geological Survey,...”
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11by Colton, Roger B. (Roger Burnham), 1924-“...U.S. Geological Survey,...”
Published 1967
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12
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13by Du Bray, E. A.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1993
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14by Page, William R.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1994
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15by Scott, Robert B.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1992
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16by Ekren, E. B. (Einar Bartlett), 1923-“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1995
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17Published 1997“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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18by Enright, Michael“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1996
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19by Ryan, Roslyn“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2006
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20by Jezorek, Ian G.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 2011
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