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1“...United States Department of the Interior, Geological Survey,...”
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2by Swanson, Roger Warren, 1914-“...United States Department of the Interior, Geological Survey,...”
Published 1970
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3by Swanson, Roger Warren, 1914-“...United States Department of the Interior, Geological Survey,...”
Published 1973
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4by Smith, Howard R., 1925-2016“...United States Department of the Interior, Geological Survey,...”
Published 1965
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5“...United States Department of the Interior, Geological Survey,...”
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6by Wells, J. V. B.“...United States Department of the Interior, Geological Survey,...”
Published 1957
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