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1by Brown, David P. (David Phillip), 1947-“...U.S. Geological Survey,...”
Published 1984
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2by Peck, Michael F.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2005
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3by Leeth, David C.“...U.S. Department of the Interior, U.S. Geological Survey,...”
Published 1999
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Government Document eBook