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1by Wandle, S. William“...U.S. Geological Survey,...”
Published 1985
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2by Ries, Kernell G., III, 1955-“...U.S. Geological Survey,...”
Published 1990
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3by Pendleton, Elizabeth A.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 2012
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4by Foster, David S. (David Smith)“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 2016
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5by Ackerman, Seth D.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 2015
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