Creator
- Oregon State University. Agricultural Experiment Station311
- Oregon State University. Extension Service255
- Oregon State University152
- Oregon State College. Agricultural Experiment Station110
- Oregon Agricultural College. Experiment Station99
- Forest Products Laboratory (U.S.)77
- Oregon. Dept. Of Geology And Mineral Industries63
- Oregon. State Game Commission62
- Oregon State University. College Of Forestry61
- Oregon. Fish Commission60
- Oregon State College. Extension Service58
- Oregon State University. Forest Research Laboratory55
- Duncan, Robert A.51
- Oregon State University. Water Resources Research Institute48
- Oregon. Department Of Fish And Wildlife47
- United States. Forest Service46
- James, Robert L.42
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)40
- United States. Agricultural Research Service38
- United States. Forest Service. Northern Region35