- Oregon State University. Extension Service[remove]1,766
- Pacific Northwest Cooperative Extension160
- United States. Department Of Agriculture123
- Washington State University. Cooperative Extension100
- Washington State University. Extension94
- University Of Idaho. Extension83
- University Of Idaho. Cooperative Extension Service77
- Oregon State University. Cooperative Extension Service76
- Southwest Oregon Forestry Intensified Research Program. Adaptive Phase45
- University Of Idaho. Cooperative Extension System36
- Bedell, Thomas E.31
- Hart, John M. (John Mervyn), 1947 30
- Fisher, Glenn C.29
- Schmall, Vicki L.27
- Koester, Ardis W.26
- Gardner, Ernest Hugh25
- Stebbins, Robert L.23
- Weber, Bruce A.23
- Morrow, Alice Mills19
- Oregon State University. Agricultural Experiment Station19