Archived - Standard Industrial Classification - Establishments (SIC-E) 1980
- A - Agricultural and Related Service Industries
- 01 - Agricultural Industries
- 013 - Field Crop Farms
- 0131 - Wheat Farms
- 0132 - Small-Grain Farms (Except Wheat)
- 0133 - Oilseed Farms (Except Corn)
- 0134 - Grain Corn Farms
- 0135 - Forage, Seed and Hay Farms
- 0136 - Dry Field Pea and Bean Farms
- 0137 - Tobacco Farms
- 0138 - Potato Farms
- 0139 - Other Field Crop Farms
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