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1by La Camera, Richard J.“...U.S. Geological Survey,...”
Published 1988
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2Published 1992“...U.S. Geological Survey :...”
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3by Crumrine, Milo D.“...U.S. Geological Survey ;...”
Published 1994
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5Published 1978“...U.S. Geological Survey,...”
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7by Risley, John C.“...U.S. Geological Survey,...”
Published 2004
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8by Petersen, James C. (James Carroll), 1952-“...U.S. Geological Survey,...”
Published 2004
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13by Kimball, Briant A.“...U.S. Geological Survey,...”
Published 2009
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14by Boleneus, D. E. (David Everett)“...U.S. Geological Survey,...”
Published 1999
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15by Miller, James A. (James Anderson), 1939-“...U.S. Geological Survey,...”
Published 1978
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16by Brooks, Tom“...U.S. Geological Survey,...”
Published 1987
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