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Author/Creator
- Geological Survey (U.S.)46
- Richmond, Gerald Martin, 1914-11
- Fullerton, David S.10
- Christiansen, Ann Coe5
- Sims, P. K. (Paul Kibler), 1918-20115
- Denson, N. M. (Norman MacLaren), 1914-3
- Dyman, T. S.3
- Minnesota Geological Survey3
- Ontario Geological Survey3
- Sado, E. V.3
- Franczyk, Karen J.2
- Hettinger, Robert D.2
- Luedke, Robert G.2
- Moore, David W. (David Warren)2
- Oklahoma Geological Survey2
- Pierson, Charles Thomas, 1918-2
- Reheis, Marith C.2
- Smith, James G., 1939-2
- University of Michigan. Department of Geological Sciences2
- University of Texas at Austin. Bureau of Economic Geology2