- Oregon State University. Extension Service58
- Oregon State University. Agricultural Experiment Station15
- Pacific Northwest Cooperative Extension11
- Washington State University. Cooperative Extension10
- United States. Department Of Agriculture8
- University Of Idaho. Cooperative Extension System7
- Watson, Barney7
- Burrill, L. C.6
- Morrow, Alice Mills5
- Price, Steve5
- Deangelis, Jack D.3
- Hart, John M. (John Mervyn), 1947 3
- Oregon State University. Malheur Experiment Station3
- Oregon. Department Of Fish And Wildlife3
- Strik, Bernadine C.3
- United States. Agricultural Research Service3
- University Of Idaho. Extension3
- Vanbuskirk, Philip3
- Washington State University. Extension3
- Bottero, J. M.2