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Author/Creator
- Christiansen, Ann Coe5
- Denne, Jane E.1
- Detterman, Robert L.1
- Farrand, William R., 1931-20111
- Fullerton, David S.10
- Gadd, N. R.1
- Geological Survey (U.S.)21
- Geological Survey of Canada1
- Gray, Henry Hamilton, 1922-1
- Hallberg, George R.1
- Hartshorn, Joseph H. (Joseph Harold), 1922-1
- Howard, Alan D.1
- Huber, N. King (Norman King), 1926-1
- Indiana. Geological Survey1
- Iowa Geological Survey1
- Kansas Geological Survey1
- Luza, Kenneth V.1
- Machette, Michael N.1
- Manitoba. Department of Energy and Mines1
- Minnesota Geological Survey2