Creator
- Oregon State University. Extension Service472
- Oregon State University. Agricultural Experiment Station415
- Forest Products Laboratory (U.S.)216
- Oregon State College. Agricultural Experiment Station216
- Oregon State University183
- Oregon. State Game Commission180
- Oregon Agricultural College. Experiment Station167
- Oregon State Agricultural College. Agricultural Experiment Station145
- Oregon. Department Of Fish And Wildlife144
- Oregon State College. Federal Cooperative Extension Service125
- Oregon State University. Forest Research Laboratory108
- Oregon. Dept. Of Geology And Mineral Industries81
- Oregon State University. College Of Forestry80
- Et Al.75
- United States. Forest Service70
- Oregon State College. Extension Service63
- Pscheidt, Jay W.61
- United States. Agricultural Research Service59
- U.S. International Biological Program. Coniferous Forest Biome56
- Mote, Don C. (Don Carlos), 1887 55