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Author/Creator
- Geological Survey (U.S.)18
- Richmond, Gerald Martin, 1914-11
- Fullerton, David S.10
- Christiansen, Ann Coe5
- Ontario Geological Survey3
- Sado, E. V.3
- Minnesota Geological Survey2
- Moore, David W. (David Warren)2
- Oklahoma Geological Survey2
- University of Michigan. Department of Geological Sciences2
- University of Texas at Austin. Bureau of Economic Geology2
- University of Texas. Bureau of Economic Geology2
- Wermund, E. G.2
- Denne, Jane E.1
- Detterman, Robert L.1
- Farrand, William R., 1931-20111
- Gadd, N. R.1
- Geological Survey of Canada1
- Gray, Henry Hamilton, 1922-1
- Hallberg, George R.1