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Author/Creator
- Geological Survey (U.S.)9
- United States. Congress. Senate. Committee on Energy and Natural Resources7
- United States. Congress. House. Committee on Natural Resources4
- United States. Bureau of the Census3
- United States. Congress. Senate. Committee on Indian Affairs (1993- )3
- United States. Congress. Senate. Committee on Small Business3
- Cannon, M. R.2
- Johnson, Dave R.2
- Martinson, Holly A.2
- Meade, Robert H., 1930-2
- Montana2
- Montana. Department of Natural Resources and Conservation2
- Moody, John A. (John Alexander), 1944-2
- United States. Congress. Senate. Committee on Appropriations. Subcommittee on the Department of the Interior and Related Agencies2
- Alpers, Charles N., 1958-1
- American Chemical Society. Division of Geochemistry1
- American Chemical Society. Meeting 19921
- Arts and Entertainment Network1
- Bauer, Clyde Max, 1886-1
- Baxter, Stephen1