Subject
- Wildlife management -- Oregon35
- Fishing -- Oregon32
- Hunting -- Oregon32
- Air -- Pollution -- Oregon9
- Environmental policy -- Oregon9
- Water -- Pollution -- Oregon9
- Forests and forestry -- Northwest, Pacific8
- Game and game-birds -- Oregon8
- Game protection -- Oregon8
- Lane County (Or.) -- History8
- Fisheries -- Columbia River -- Periodicals7
- Fisheries -- Oregon7
- Forests and forestry -- Research -- Oregon7
- Gillnetting -- Columbia River -- Periodicals7
- Fisheries -- British Columbia -- Periodicals6
- Pacific Marine Fisheries Commission -- Periodicals6
- United States -- Pacific Coast6
- Forest products -- Research -- Oregon5
- Oregon State University. Forest Research Laboratory5
- Catalogs, Publishers' -- Oregon4