Creator
- Oregon State University. Extension Service20
- Brodeur, Richard D.16
- Oregon State University. Agricultural Experiment Station16
- Starr, Richard M.16
- Bullock, Richard M. (Richard Melvin), 1918 14
- Dick, Richard14
- Sattell, Robert14
- Mcgrath, Daniel M. (Daniel Morton)13
- Suryan, Robert M.12
- Mack, H. J.11
- Frazier, W. A.10
- Gladics, Amanda J.10
- Baggett, James R.9
- Aguirre Munoz, Alfonso7
- Armstrong, Doug P.7
- Bonnaud, Elsa7
- Burbidge, Andrew A.7
- Butchart, Stuart H. M.7
- Campbell, Karl7
- Corkery, Ilse7