- Oregon State University. Extension Service71
- Oregon State University. Agricultural Experiment Station37
- Oregon. Department Of Fish And Wildlife19
- Oregon State University. Forest Research Laboratory14
- Western Dry Kiln Clubs14
- Western Dry Kiln Clubs. Meeting (27th : 1976)14
- United States. Forest Service. Northern Region. State & Private Forestry13
- Oregon. Dept. Of Geology And Mineral Industries12
- Gardner, E. Hugh9
- Jackson, T. L.7
- Mcgregor, Mark D.7
- Stebbins, Robert L.7
- United States. Department Of Agriculture7
- Vough, Lester Ray, 1944 7
- Hamel, Dennis R.6
- Mansour, N. S.5
- Oregon State University. Water Resources Research Institute5
- Pacific Northwest Cooperative Extension5
- Allen, J. S.4
- Baggett, James R.4