Subject
- Game and game-birds -- Oregon36
- Game protection -- Oregon34
- Oregon State University -- Curricula24
- Fisheries -- Oregon21
- Wildlife management -- Oregon19
- Columbia Basin Agricultural Research Center -- Periodicals14
- Wheat13
- Fishing -- Oregon12
- Hunting -- Oregon12
- Fescue10
- Forests and forestry -- Northwest, Pacific10
- Agriculture -- Research -- Columbia River Watershed9
- Fish-culture -- Oregon -- Statistics8
- Fishery management -- Oregon -- Statistics8
- Fishing -- Oregon -- Statistics8
- United States. Forest Service. Pacific Northwest Region8
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club8
- Forests and forestry -- Oregon7
- Rats7
- Wheat -- Breeding7