Creator
- Oregon State University. Extension Service868
- Forest Products Laboratory (U.S.)821
- Oregon State University. Agricultural Experiment Station724
- Oregon State College. Agricultural Experiment Station367
- Oregon State College. Federal Cooperative Extension Service270
- Oregon Agricultural College. Experiment Station179
- Oregon State University. Forest Research Laboratory152
- Oregon State Agricultural College. Agricultural Experiment Station131
- Pacific Northwest Cooperative Extension109
- Oregon State College. Extension Service105
- Oregon. Fish Commission98
- Oregon State University. Cooperative Extension Service96
- Oregon State Agricultural College. Extension Service87
- Oregon Agricultural College. Extension Service83
- United States. Department Of Agriculture83
- United States. Forest Service75
- Oregon Agricultural Experiment Station74
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)71
- Oregon. Department Of Fish And Wildlife65
- U.S. International Biological Program. Coniferous Forest Biome65