Creator
- Oregon State University. Extension Service449
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)69
- Oregon State College. Agricultural Experiment Station64
- Oregon State University. Agricultural Experiment Station64
- Pacific Northwest Cooperative Extension64
- United States. Department Of Agriculture51
- United States. Forest Service51
- Washington State University. Cooperative Extension46
- Oregon State University. Cooperative Extension Service44
- University Of Idaho. Cooperative Extension Service43
- Oregon. Forest Lands Research Center, Corvallis42
- Southwest Oregon Forestry Intensified Research Program. Adaptive Phase41
- Brook, Edward J.35
- Oregon State College. Federal Cooperative Extension Service35
- Chelton, Dudley B.33
- Moum, J. N.33
- Peterson, William T.32
- Selker, John S.32
- Brodeur, Richard D.31
- Haggerty, Roy30