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- United States. National Park Service. Natural Resource Stewardship and Science, issuing body37
- Cooperative Park Studies Unit (Moscow, Idaho). Visitor Services Project25
- Le, Yen21
- Manni, Marc F.14
- U.S. Fish and Wildlife Service13
- Social Science Program (U.S.)10
- Grandjean, Burke D.7
- Harnisch, Brian7
- Taylor, Patricia A.7
- Wyoming Survey & Analysis Center7
- United States. National Park Service6
- Begly, Ally5
- Cole, David N.5
- Holmes, Nancy C.5
- Cooperative Park Studies Unit (Moscow, Idaho)4
- Hollenhorst, Steven J.4
- Intermountain Research Station (Ogden, Utah)4
- Littlejohn, Margaret4
- Pacific Northwest Research Station (Portland, Or.), issuing body4
- Eagles, Paul F. J., 1949-3