- Oregon State University. Extension Service273
- Oregon State University192
- Oregon State University. Agricultural Experiment Station134
- Boock, Michael77
- Kosro, P. Michael, 1951 71
- Oregon State University. College Of Forestry68
- Freitag, Michael65
- Brophy, Laura S.51
- Ewald, Michael J.50
- Huyer, Adriana, 1945 47
- Brunner, Jay F.44
- Fleischbein, Jane44
- Chelton, Dudley B.43
- Doerr, Michael D.43
- Et Al.42
- Wheeler, Patricia A.42
- Smith, Robert L. (Robert Lloyd), 1935 40
- Gamroth, Michael J.39
- Oregon State University. Forest Research Laboratory38
- Kent, Michael L.35