Creator
- Oregon State University. Extension Service121
- Oregon State University. Agricultural Experiment Station112
- Forest Products Laboratory (U.S.)86
- Oregon State University. Forest Research Laboratory64
- Oregon State University53
- Oregon State University. Water Resources Research Institute45
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)41
- United States. Bureau Of Land Management38
- United States. Forest Service36
- Klamath Falls Resource Area35
- Oregon State College. Federal Cooperative Extension Service34
- Oregon State College. Extension Service30
- Oregon State University. College Of Forestry29
- United States. Agricultural Research Service29
- Oregon State University. Malheur Experiment Station25
- Oregon. Department Of Fish And Wildlife21
- Oregon State Agricultural College. Extension Service19
- Et Al.16
- Oregon Agricultural College. Experiment Station16
- Oregon State College. Agricultural Experiment Station16