Creator
- Oregon State University. Extension Service621
- Oregon State University. Agricultural Experiment Station423
- Forest Products Laboratory (U.S.)320
- Oregon. State Game Commission240
- Oregon State College. Agricultural Experiment Station172
- Oregon. Department Of Fish And Wildlife162
- Oregon State College. Federal Cooperative Extension Service150
- Oregon Agricultural College. Experiment Station126
- Oregon State University. Forest Research Laboratory119
- Oregon. Dept. Of Geology And Mineral Industries98
- Et Al.94
- United States. Forest Service93
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)80
- Oregon State Agricultural College. Agricultural Experiment Station69
- Oregon State College. Extension Service60
- Oregon State University55
- Oregon State University. College Of Forestry53
- U.S. International Biological Program. Coniferous Forest Biome50
- Fisher, Glenn C.49
- Oregon State University. Cooperative Extension Service49