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1by Parker, Glenn L. (Glenn Lane), 1884-, Beckman, H. C. (Henry Claus), 1888-, Bolon, H. C.“...United States Department of the Interior, Geological Survey,...”
Published 1943
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2by Paulsen, Carl G.“...United States Department of the Interior, Geological Survey,...”
Published 1949
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3by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1933
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4by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1933
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5by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1935
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6Published 1946“...United States Department of the Interior, Geological Survey,...”
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7by Paulsen, Carl G.“...United States Department of the Interior, Geological Survey,...”
Published 1951
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8by Paulsen, Carl G.“...United States Department of the Interior, Geological Survey,...”
Published 1953
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9by Wells, J. V. B.“...United States Department of the Interior, Geological Survey,...”
Published 1958
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