Creator
- Oregon State University144
- Oregon State University. Extension Service93
- Oregon State University. Agricultural Experiment Station85
- Cross, Timothy L.37
- Oregon State College. Agricultural Experiment Station36
- Oregon State College. Extension Service30
- Oregon Agricultural College. Experiment Station24
- Oregon. Employment Division24
- Cowles, Timothy J.23
- Et Al.22
- Oregon State University. College Of Forestry21
- Oregon State Agricultural College. Agricultural Experiment Station17
- Pacific Northwest Insect Management Conference16
- Delcurto, Timothy15
- Oregon State University. Forest Research Laboratory15
- Oregon. State Game Commission. Fishery Division15
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)15
- Boyd, Timothy John, 1958 201314
- Klamath County (Or.)14
- Powers, W. L. (Wilbur Louis), 188714