- Oregon State University. Agricultural Experiment Station190
- Forest Products Laboratory (U.S.)189
- Oregon State University. Extension Service186
- Oregon State College. Agricultural Experiment Station148
- Oregon State College. Federal Cooperative Extension Service86
- Mack, H. J.82
- Westigard, Peter H.61
- Beers, Elizabeth H.54
- Chang, Jeff H.51
- Oregon Agricultural College. Experiment Station46
- Baggett, James R.45
- Oregon State Agricultural College. Agricultural Experiment Station43
- Frazier, W. A.41
- Et Al.40
- Mansour, N. S.38
- Adams, H. P. (Holyoke Purinton), 1922 34
- Gent, David H.33
- Southern Oregon Agricultural Experiment Station33
- Strauss, Steven H.33
- Loper, Joyce E.32