- Oregon State University. Extension Service230
- Oregon State University194
- Oregon State University. Agricultural Experiment Station146
- Kosro, P. Michael, 1951 60
- Oregon State University. College Of Forestry59
- Boock, Michael51
- Brunner, Jay F.45
- Doerr, Michael D.44
- Oregon State University. Forest Research Laboratory43
- Wheeler, Patricia A.40
- Huyer, Adriana, 1945 39
- Fleischbein, Jane38
- Chelton, Dudley B.35
- Et Al.35
- Smith, Robert L. (Robert Lloyd), 1935 35
- Freitag, Michael33
- Institute For Natural Resources33
- Oregon. Department Of Fish And Wildlife32
- Kent, Michael L.31
- United States. Agricultural Research Service30