- Oregon State University. Extension Service56
- Klamath Falls Resource Area38
- United States. Bureau Of Land Management38
- Western Dry Kiln Association14
- Western Dry Kiln Association. Meeting (51st : 2000 : Reno, Nev.)14
- United States. Forest Health Protection13
- Brunner, Jay F.11
- National Marine Fisheries Service, Northwest Region10
- United States. Forest Service. Northern Region10
- Oregon State University. Agricultural Experiment Station8
- Bragg, David E.7
- Burns, J. W.6
- Fisher, Glenn C.6
- Gardner, Ernest Hugh6
- James, Robert L.6
- Schreiber, Alan6
- Tanigoshi, Lynell K.6
- Doerr, Michael D.5
- Jackson, T. L. (Thomas Lloyd), 1922 5
- Kosro, P. Michael, 1951 5