Creator
- Forest Products Laboratory (U.S.)302
- Oregon State University. Agricultural Experiment Station187
- Oregon State University. Extension Service139
- Oregon State University69
- Oregon. Department Of Fish And Wildlife69
- Oregon State University. Forest Research Laboratory60
- Oregon State College. Agricultural Experiment Station57
- Oregon State College. Federal Cooperative Extension Service54
- Oregon State University. Water Resources Research Institute44
- Oregon. State Game Commission44
- Oregon. Fish Commission40
- Et Al.38
- Oregon Agricultural College. Experiment Station34
- Oregon State University. Dept. Of Computer Science33
- United States. Agricultural Research Service33
- United States. Forest Service32
- Oregon State Agricultural College. Extension Service28
- Peterson, William T.28
- Chelton, Dudley B.25
- Oregon State College. Extension Service24