Creator
- Oregon State University. Agricultural Experiment Station167
- Oregon State University. Extension Service117
- Oregon State College. Agricultural Experiment Station85
- Oregon State University83
- Oregon State College. Extension Service59
- United States. Bureau Of Land Management41
- Oregon. State Game Commission40
- Klamath Falls Resource Area38
- Oregon State University. College Of Forestry38
- Oregon State University. Malheur Experiment Station35
- Oregon State University. Forest Research Laboratory34
- Oregon. Dept. Of Geology And Mineral Industries32
- Oregon. Department Of Fish And Wildlife25
- United States. Forest Service25
- Oregon. Fish Commission24
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club24
- Forest Products Laboratory (U.S.)23
- Lane County Historical Society (Or.)23
- United States. Agricultural Research Service22
- Pacific Northwest Insect Management Conference21