Subject
- Greenhouse gases -- Forecasting5
- Climatic changes -- Oregon -- Evaluation4
- Biology -- Study and teaching3
- Dissertations, Academic -- United States -- Bibliography -- Catalogs3
- Forests and forestry -- Northwest, Pacific3
- Forests and forestry -- Research -- Oregon3
- Geology -- Oregon -- Field work3
- Mineral industries -- Oregon3
- Natural gas -- Prospecting -- Oregon3
- Oregon State Agricultural College3
- Oregon State University -- Curricula3
- Petroleum -- Prospecting -- Oregon3
- United States. Forest Service -- Bibliography3
- Community colleges -- Oregon2
- Forest management -- Oregon2
- Forest policy -- United States -- Bibliography2
- Forest reserves -- United States -- Bibliography2
- Forests and forestry -- Oregon2
- Forests and forestry -- United States -- Bibliography2
- Geothermal resources -- Oregon2