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Topic
- Harvesting 230
- Agriculture 150
- Agricultural systems 39
- Wheat--Harvesting 39
- Agricultural laborers 38
- Agricultural machinery 34
- Graminaceae 25
- Hops 23
- Orchards 23
- Oregon State University. Extension Service 19
- Mexican American agricultural laborers 18
- Harvesting machinery 16
- Combines (Agricultural machinery) 15
- Plum 15
- Strawberries 14
- Beans 9
- Farm life 9
- Portraits, Group 9
- Wheat 9
- Cherry 8
