Creator
- Oregon State University. Extension Service562
- Oregon State University. Agricultural Experiment Station375
- Oregon State University178
- Forest Products Laboratory (U.S.)139
- Oregon State Agricultural College. Agricultural Experiment Station139
- Oregon State College. Agricultural Experiment Station129
- Oregon. Department Of Fish And Wildlife127
- Oregon. State Game Commission122
- Oregon State University. Forest Research Laboratory101
- Oregon State University. College Of Forestry93
- Oregon State College. Federal Cooperative Extension Service88
- Et Al.84
- United States. Forest Service. Northern Region. State & Private Forestry68
- Institute For Natural Resources62
- Mcgregor, Mark D.60
- Oregon Agricultural College. Experiment Station54
- Oregon State College. Extension Service54
- Oregon. Dept. Of Geology And Mineral Industries54
- Oregon State University. Water Resources Research Institute50
- United States. Agricultural Research Service49