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9921
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9922Published 1987“...Department of the Interior, U.S. Geological Survey,...”
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9923
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9924
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9925Published 1986“...Department of the Interior, U.S. Geological Survey,...”
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9926by Miller, Wesley L.“...Department of the Interior, U.S. Geological Survey,...”
Published 1987
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9927by Schiffer, Donna M.“...Department of the Interior, U.S. Geological Survey,...”
Published 1987
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9928by Smoot, Charles W.“...Department of the Interior, U.S. Geological Survey,...”
Published 1986
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9929by Henderson, S. E.“...Department of the Interior, U.S. Geological Survey,...”
Published 1987
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9930by Irwin, Don J.“...Department of the Interior, U.S. Geological Survey,...”
Published 1988
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9931
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9932by Reynolds, Richard J.“...Department of the Interior, U.S. Geological Survey,...”
Published 1988
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9933
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9934by Ackerman, D. J.“...Department of the Interior, U.S. Geological Survey,...”
Published 1987
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9935by Mack, Frederick K.“...Department of the Interior, U.S. Geological Survey,...”
Published 1987
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9936by Ruhl, J. F.“...Department of the Interior, U.S. Geological Survey,...”
Published 1987
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9937
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9938
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9939
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9940by Ackerman, D. J.“...Department of the Interior, U.S. Geological Survey,...”
Published 1987
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