Creator
- Oregon State University. Extension Service987
- Forest Products Laboratory (U.S.)973
- Oregon State University. Agricultural Experiment Station864
- Oregon State College. Agricultural Experiment Station340
- Oregon. State Game Commission283
- Oregon State College. Federal Cooperative Extension Service200
- Oregon Agricultural College. Experiment Station196
- Oregon State University176
- Oregon State University. Forest Research Laboratory174
- Oregon. Dept. Of Geology And Mineral Industries174
- Oregon. Department Of Fish And Wildlife171
- Oregon State Agricultural College. Agricultural Experiment Station158
- Et Al.155
- Oregon State Agricultural College. Extension Service117
- Oregon State University. Water Resources Research Institute117
- U.S. International Biological Program. Coniferous Forest Biome117
- Oregon Agricultural College. Extension Service104
- United States. Forest Service. Northern Region. State & Private Forestry104
- Oregon. Fish Commission102
- Oregon State University. Cooperative Extension Service100