Creator
- Oregon State University. Extension Service304
- Oregon State University. Agricultural Experiment Station260
- Oregon State University148
- Oregon State College. Agricultural Experiment Station122
- Jackson, T. L. (Thomas Lloyd), 1922 76
- Forest Products Laboratory (U.S.)72
- Oregon State University. Forest Research Laboratory72
- Et Al.66
- Oregon State College. Federal Cooperative Extension Service56
- Oregon. Dept. Of Geology And Mineral Industries55
- Oregon State University. College Of Forestry49
- Oregon State College. Engineering Experiment Station48
- United States. Forest Service48
- Oregon. Fish Commission45
- Bedell, Thomas E.44
- Gardner, Ernest Hugh41
- Lane County Historical Society (Or.)41
- Oregon. Department Of Fish And Wildlife40
- Institute For Natural Resources36
- Oregon State College. Extension Service34