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1by Dunn, David D.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2001
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2by Turco, Michael J.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2007
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3by Baldys, S.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2012
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4Published 2011“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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5by Andrews, Freeman L.“...Dept. of the Interior, U.S. Geological Survey ;...”
Published 1989
Government Document Book