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- Indonesia. Direktorat Perlindungan dan Pengawetan Alam2
- Mississippi River Corridor Study Commission (U.S.)2
- Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)2
- United States. Bureau of Land Management. Bighorn Basin Resource Area2
- United States. Bureau of Land Management. Lewistown District2
- United States. Forest Service2
- Blinn, Tawny1
- Chavez, Deborah J.1
- Cole, David N.1
- Franklin, Jerry F.1
- Greene, Sarah1
- Henningson, Durham & Richardson1
- Indonesia. Departemen Pertanian1
- Koperasi Pegawai Negeri Sipil (Indonesia. Direktorat Jenderal Minyak dan Gas Bumi)1
- McCool, Stephen F.1
- National Biological Survey (U.S.)1
- Ohio. Division of Natural Areas and Preserves1
- Pacific Northwest Research Station (Portland, Or.)1
- Rocky Mountain Research Station--Ogden1
- Symposium on Social Aspects and Recreation Research (1992 : Ontario, Calif.)1