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Topic
- Agriculture 152
- Farm ownership 152
- Farm tenancy--Economic aspects 151
- Farms--Oregon 121
- Ranches--Oregon 32
- Motion pictures 11
- Nature films 11
- Lectures and lecturing 2
- Conservation of natural resources 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
- Universities and colleges 1
- Wildlife management 1