Creator
- Oregon State University. Cooperative Extension Service76
- Oregon State University. Extension Service76
- Jackman, E. R.15
- Jackman, E. R. (Edwin Russell), 1894 196715
- Cornett, Elgin7
- Ross, Jackson7
- Hedrick, D. W.4
- Markgraf, Peter M.4
- Bunch, Thomas R.3
- Barry, Dennis2
- Linebaugh, James A.2
- Brooks, Lee E.1
- Drinkwater, Jay R.1
- Eriksen, Bill1
- Fransen, D.1
- Friesz, Ronald C.1
- Gates, Dillard H.1
- Gibbs, Jacy1
- Hyder, Donald W.1
- Johnson, Victor1