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Author/Creator
- Belʹkova, L. N. (Li͡udmila Nikolaevna)1
- Brasier, M. D.1
- Clifford, Tom N.1
- Geological Survey (U.S.)1
- Glaessner, Martin F. (Martin Fritz), 1906-1
- Kleeschulte, Michael J.1
- Missouri. Department of Conservation1
- Ognev, V. N. (Vasiliĭ Nikolaevich), 1902-1
- Seeger, Cheryl M.1
- Tashchilov, A. F. (Aleksandr Fedorovich)1
- United States. Bureau of Land Management1
- United States. Environmental Protection Agency1
- United States. Forest Service1