Creator
- Oregon State University. Extension Service987
- Oregon State University. Agricultural Experiment Station664
- Forest Products Laboratory (U.S.)492
- Oregon State College. Federal Cooperative Extension Service264
- Oregon. State Game Commission251
- Oregon State College. Agricultural Experiment Station245
- Oregon. Department Of Fish And Wildlife180
- Oregon. Dept. Of Geology And Mineral Industries170
- Oregon State University162
- Oregon State University. Forest Research Laboratory148
- United States. Forest Service122
- Oregon Agricultural College. Experiment Station116
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)112
- Et Al.97
- Oregon State College. Extension Service96
- Oregon State Agricultural College. Agricultural Experiment Station84
- Oregon State University. Cooperative Extension Service82
- Oregon State University. College Of Forestry76
- Pacific Northwest Cooperative Extension69
- United States. Agricultural Research Service69