Creator
- Oregon. State Game Commission251
- Oregon State University. Agricultural Experiment Station201
- Oregon State University. Extension Service194
- Oregon. Dept. Of Geology And Mineral Industries168
- Oregon State University128
- Oregon. Department Of Fish And Wildlife127
- Oregon State College. Agricultural Experiment Station100
- Oregon State College. Federal Cooperative Extension Service53
- Oregon State University. College Of Forestry51
- United States. Agricultural Research Service43
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)40
- Oregon State University. Forest Research Laboratory36
- Columbia Basin Agricultural Research Center34
- Breithaupt, L. R. (Le Roy), 1886 28
- Mason, Ralph S.28
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club28
- Institute For Natural Resources26
- Oregon State Agricultural College. Agricultural Experiment Station26
- Oregon State College. Extension Service25
- United States. Forest Service25