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1by D'Agostino, John P.“...U.S. Geological Survey bulletin ;...”
Published 1985
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2by Nelson, Arthur E. (Arthur Edward), 1922-“...U.S. Geological Survey bulletin ;...”
Published 1988
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3
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4by Jackson, John C. (John Carl), 1959-“...U.S. Geological Survey bulletin ;...”
Published 1992
Government Document Book -
5by Gohn, Gregory S.“...U.S. Geological Survey bulletin ;...”
Published 1992
Government Document Book -
6Published 1992“...U.S. Geological Survey bulletin ;...”
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7by Markewich, Helaine W.“...U.S. Geological Survey bulletin ;...”
Published 1994
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8
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9by Robinson, Gilpin R., Jr“...U.S. Geological Survey bulletin ;...”
Published 1992
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10
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11by Nelson, Arthur E. (Arthur Edward), 1922-“...U.S. Geological Survey bulletin ;...”
Published 1988
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12
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13
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14Published 1986“...U.S. Geological Survey bulletin ;...”
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15by Markewich, Helaine W.“...U.S. Geological Survey bulletin ;...”
Published 1986
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