Creator
- Oregon State University. Extension Service195
- Oregon State University. Agricultural Experiment Station144
- Oregon State College. Extension Service102
- Forest Products Laboratory (U.S.)58
- Oregon. Department Of Fish And Wildlife54
- Oregon State University. Water Resources Research Institute52
- Oregon State College. Agricultural Experiment Station45
- Oregon. State Game Commission42
- United States. Forest Service41
- Institute For Natural Resources39
- Oregon State University. College Of Forestry39
- Oregon State University. Forest Research Laboratory37
- Oregon State University36
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)33
- Oregon State College. Federal Cooperative Extension Service32
- Oregon. Dept. Of Geology And Mineral Industries32
- Oregon Agricultural College. Experiment Station22
- United States. Soil Conservation Service21
- United States. Agricultural Research Service20
- Upper Willamette Resource Conservation And Development Project19