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- Geological Survey (U.S.)540
- United States133
- United States. Bureau of Land Management119
- United States. Bureau of Land Management. Montana State Office91
- National Science and Technology Center (U.S.)52
- National Operations Center (U.S.), editor47
- United States. Bureau of Land Management, cartographer46
- Colton, Roger B. (Roger Burnham), 1924-34
- United States. Bureau of Land Management. Montana State Office, distributor31
- Geological Survey (U.S.), distributor30
- Montana Bureau of Mines and Geology30
- National Applied Resource Sciences Center (U.S.)27
- United States. Forest Service25
- United States. Forest Service. Northern Region19
- Witkind, Irving Jerome, 1917-18
- Feltis, R. D. (Richard D.), 1930-17
- United States. Bureau of Land Management. Montana State Office, editor14
- Luft, Stanley Jeremie, 1927-12
- Mudge, Melville Rhodes, 1921-12
- Bateman, Andrew F.11