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Topic
- Conservation of natural resources 6
- Lectures and lecturing 5
- Oregon Wildlife Federation 5
- Degrees, Academic 2
- Oregon State College 2
- Wildlife management 2
- Bears 1
- Game and game-birds 1
- Oregon State Agricultural College 1
- Oregon State College. Department of Fish, Game, and Fur Animal Management 1
- Oregon State Planning Board 1
- Pacific Northwest Regional Planning Commission 1
- Rivers--Oregon 1
- Water--Pollution 1