- Oregon State University. Extension Service112
- Oregon State University. Agricultural Experiment Station77
- Selker, John S.33
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)24
- Barth, John A.22
- Southwest Oregon Forestry Intensified Research Program. Adaptive Phase22
- United States. Forest Service21
- Oregon State College. Agricultural Experiment Station18
- Gupta, Rakesh17
- Hart, John M. (John Mervyn), 1947 16
- Oregon Agricultural College. Experiment Station15
- Upper Willamette Resource Conservation And Development Project14
- Rupp, David E.13
- Brook, Edward J.12
- Oregon. State Game Commission. Fishery Division12
- Pacific Northwest Cooperative Extension12
- Haggerty, Roy11
- United States. Department Of Agriculture11
- Campbell, John L.10
- Moum, James N.10