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Author/Creator
- Geological Survey (U.S.)16
- Swezey, C. (Christopher)4
- Feltis, R. D. (Richard D.), 1930-3
- Hettinger, Robert D.2
- Kirschbaum, Mark A.2
- Brown, Timothy A.1
- Bush, Charles A.1
- Cole, Christopher J.1
- Colton, Roger B. (Roger Burnham), 1924-1
- Dunning, C. P.1
- Fullerton, David S.1
- Graham, Garth E.1
- Honey, James G.1
- Johnson, Michaela R. (Michaela Rae)1
- Johnson, Ronald C. (Ronald Carl), 1950-1
- Law, B. E.1
- Lickus, M. R.1
- Machette, Michael N.1
- Montana Bureau of Mines and Geology1
- Nichols, Douglas J.1