- Oregon. Department Of Fish And Wildlife17
- Oregon. Dept. Of Geology And Mineral Industries12
- Oregon State University. Extension Service11
- Vough, Lester Ray, 1944 6
- Beaulieu, John D.3
- Mason, Ralph S.3
- Gaumer, Thomas F.2
- Hull, Donald A.2
- Komar, Paul D., 1939 2
- Oregon State University. Federal Cooperative Extension Service2
- Oregon. Department Of Fish And Wildlife. Research Section2
- Rea, Campbell Cary2
- Stout, Heather2
- Youngberg, Harold Wayne, 1929 2
- Abizadeh, Sohrab1
- Adu, Gloria Aderemi1
- Aghdasi, Farhad1
- Ahmad, Arshad1
- Aktan, Selman1
- Allen, John Eliot, 1908 1