Subject
- Forests and forestry -- Northwest, Pacific5
- Columbia River4
- Insects -- Northwest, Pacific4
- Beetles -- Northwest, Pacific3
- Dissertations, Academic -- United States -- Bibliography -- Catalogs3
- Forests and forestry -- United States -- Bibliography3
- Lane County (Or.) -- History3
- Oregon State Agricultural College3
- Radioactive pollution of water -- Columbia River3
- Radioecology -- Columbia River3
- United States. Forest Service -- Bibliography3
- United States. Forest Service. Pacific Northwest Region3
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club3
- Climatic changes -- Oregon -- Evaluation2
- Education -- British Columbia2
- Estuarine ecology2
- Excavations (Archaeology) -- Oregon -- Corvallis2
- Forest management -- United States2
- Forest policy -- United States -- Bibliography2
- Forest reserves -- United States -- Bibliography2