Creator
- Oregon State University. Extension Service313
- Oregon State University. Agricultural Experiment Station194
- Oregon State University102
- Oregon. Department Of Fish And Wildlife98
- Forest Products Laboratory (U.S.)75
- Oregon State University. Forest Research Laboratory65
- Oregon State College. Federal Cooperative Extension Service63
- United States. Forest Service. Northern Region. State & Private Forestry63
- Mcgregor, Mark D.61
- Oregon. State Game Commission60
- Oregon State University. College Of Forestry58
- United States. Forest Service44
- Institute For Natural Resources43
- Oregon State College. Agricultural Experiment Station40
- Oregon. Dept. Of Geology And Mineral Industries40
- United States. Agricultural Research Service40
- Oregon Agricultural College. Experiment Station39
- Oregon. Fish Commission39
- United States. Bureau Of Land Management37
- Oregon Agricultural College. Extension Service36