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1by Davidson, Edward Sheldon, 1926-“...Geological Survey bulletin ;...”
Published 1967
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2by Hawley, C. C. (Charles Caldwell), 1929-, Dyer, H. B. (Henry Brooke), Robeck, R. C. (Raymond C.), 1919-“...Geological Survey bulletin ;...”
Published 1968
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6by Thompson, M. E.“...Geological Survey bulletin ;...”
Published 1953
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