Subject
- Forests and forestry -- Northwest, Pacific5
- Hazelnuts -- Diseases and pests -- Control -- Oregon4
- Cutworms -- Control -- Oregon3
- Cydia -- Control -- Oregon3
- Forests and forestry -- Research -- Northwest, Pacific3
- Forests and forestry -- United States -- Bibliography3
- Oregon State University -- Curricula3
- Pacific Northwest Forest and Range Experiment Station (Portland, Or.)3
- Computer vision2
- Dissertations, Academic -- United States -- Bibliography -- Catalogs2
- Excavations (Archaeology) -- Oregon -- Fort Yamhill2
- Forest policy -- United States -- Bibliography2
- Forest reserves -- United States -- Bibliography2
- Fort Hoskins Site (Or.)2
- Fort Yamhill (Or.) -- Antiquities2
- Fort Yamhill (Or.) -- History -- 19th century2
- Lane County (Or.) -- History2
- Military archaeology -- Oregon -- Fort Yamhill2
- Oregon -- History2
- Oregon State University -- Dissertations -- Bibliography -- Catalogs2