Creator
- Oregon State University. Extension Service16
- Cronn, Richard11
- Liston, Aaron9
- Brodeur, Richard D.8
- Dick, Richard7
- Field, John7
- Sattell, Robert7
- Abell, Jeffrey6
- Bjorkstedt, Eric P.6
- Bograd, Steven J.6
- Chavez, Francisco P.6
- Fisher, Jennifer6
- Gladics, Amanda J.6
- Golightly, Richard T.6
- Hart, John M. (John Mervyn), 1947 6
- Luna, John6
- Melin, Sharon R.6
- Oregon. Dept. Of Geology And Mineral Industries6
- Peterson, William T.6
- Sakuma, Keith6