Creator
- Oregon State University136
- Oregon State University. Agricultural Experiment Station135
- Oregon State University. Extension Service64
- Et Al.50
- Oregon State University. Forest Research Laboratory47
- Brook, Edward J.36
- Oregon State College. Extension Service36
- Oregon. Dept. Of Geology And Mineral Industries34
- Lane County Historical Society (Or.)33
- United States. Agricultural Research Service32
- United States. Forest Service31
- Oregon. State Game Commission27
- Institute For Natural Resources25
- Oregon Agricultural College. Experiment Station25
- Duncan, Robert A.21
- Oregon Agricultural Experiment Station21
- Oregon State College. Agricultural Experiment Station20
- Oregon State University. Water Resources Research Institute20
- Spatafora, Joseph W.20
- Poinar, George, jr.19