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2by Brian, Antony W.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 2005
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3Published 2007“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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4by Stofan, Ellen Renee, 1961-“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2003
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5by Stofan, Ellen Renee, 1961-“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2012
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