Subject
- Game and game-birds -- Oregon138
- Game protection -- Oregon138
- Fisheries -- Oregon129
- 4-H clubs73
- Industrial arts -- Study and teaching64
- Forests and forestry -- Oregon63
- Forests and forestry -- Northwest, Pacific56
- Wildlife management -- Oregon46
- Educational counseling42
- Home economics -- Study and teaching41
- Agricultural pests -- Control -- Congresses39
- Fishing -- Oregon36
- Forests and forestry -- Research -- Oregon36
- Hunting -- Oregon36
- Douglas fir35
- Agriculture -- Oregon33
- Forests and forestry -- Washington (State)31
- Fisheries -- Economic aspects -- Congresses29
- Forests and forestry -- Washington (State) -- Statistics29
- Machine learning28