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Topic
- Agriculture 33
- Farm ownership 28
- Farm tenancy--Economic aspects 28
- Farms--Oregon 26
- Agricultural machinery 3
- Graminaceae 3
- Harvesting 3
- Ranches--Oregon 2
- Agricultural laborers 1
- Contests 1
- Cows 1
- Cranberries 1
- Livestock 1
- Oregon State University. Extension Service 1