Creator
- Oregon State College. Agricultural Experiment Station91
- Oregon. State Game Commission89
- Oregon State University. Agricultural Experiment Station87
- Oregon State University. Forest Research Laboratory65
- Oregon State University. Extension Service60
- U.S. International Biological Program. Coniferous Forest Biome55
- University Of Washington36
- Oregon State University. College Of Forestry34
- Oregon State University30
- Oregon State Agricultural College. Agricultural Experiment Station28
- Forest Products Laboratory (U.S.)25
- Lane County Historical Society (Or.)21
- Mahrt, Larry21
- Oregon Agricultural College. Experiment Station19
- United States. Forest Service19
- Oregon State College. Extension Service18
- Western Orchard Pest And Disease Management Conference18
- Institute For Natural Resources17
- North, Malcolm17
- Oregon. Department Of Fish And Wildlife17