- Oregon. Department Of Fish And Wildlife99
- Oregon State University. Extension Service80
- Youngberg, Harold Wayne, 1929 15
- Karow, Russell S.14
- Columbia River Gillnetter (Columbia River Fishermen's Protective Union)8
- Oregon State University Libraries And Press8
- University Of Idaho. Cooperative Extension Service8
- Osu Forestry Alumni Association7
- Riedl, Helmut W.6
- United States. Forest Service6
- United States. Forest Service. Pacific Northwest Region6
- Washington State University. Cooperative Extension6
- Burts, Everett5
- Chilcote, David O.5
- Cross, Timothy L.5
- Oregon State University. College Of Forestry5
- Shearer, Peter W.5
- Thorpe, Jim5
- Topik, Christopher5
- United States. Bureau Of Land Management5