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1by Langenheim, Victoria E.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1999
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2Published 2000“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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3Published 2006“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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4Published 2006“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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5by Langenheim, Victoria E.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1996
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6by Langenheim, Victoria E.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2009
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7by Langenheim, Victoria E.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2010
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8by Watt, J. T.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2011
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9by Langenheim, Victoria E.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2011
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10by Langenheim, Victoria E.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 2012
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11by Langenheim, Victoria E.“...U.S. Dept. of the Interior, U.S. Geological Survey ; USGS Information Services,...”
Published 1996
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