Creator
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)22
- Oregon State University. Extension Service20
- United States. Forest Service14
- Hatfield Marine Science Center13
- Oregon. Department Of Fish And Wildlife12
- Oregon State University. College Of Forestry11
- Oregon. Dept. Of Geology And Mineral Industries11
- Oregon. State Game Commission9
- Institute For Natural Resources7
- Oregon State University7
- Oregon. State Water Resources Board7
- Geyer, Nancy A.6
- Oregon State University. Agricultural Experiment Station6
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club6
- Mason, Ralph S.5
- Oregon. Natural Area Preserves Advisory Committee5
- E & S Environmental Chemistry, Inc.4
- Frenkel, Robert E.4
- Hatch, Melville Harrison, 1898 4
- Moravets, F. L.4