Creator
- Oregon State University. Agricultural Experiment Station109
- Oregon State University80
- Oregon State University. Extension Service52
- Oregon State University. College Of Forestry43
- Oregon State University. Malheur Experiment Station30
- Forest Products Laboratory (U.S.)29
- Oregon State University. Forest Research Laboratory26
- Lane County Historical Society (Or.)25
- Oregon Agricultural College. Experiment Station24
- Et Al.22
- Oregon State University. Water Resources Research Institute20
- Oregon State College. Agricultural Experiment Station19
- U.S. International Biological Program. Coniferous Forest Biome19
- United States. Forest Service19
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club17
- Western Orchard Pest And Disease Management Conference17
- Oregon State College. Extension Service16
- Oregon. Dept. Of Geology And Mineral Industries16
- Oregon Agricultural Experiment Station15
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)15