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- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- Apr. 15, 1939
- SuDoc number:
- A 57.7/2:L 22/3
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- [1939.]
- SuDoc number:
- A 57.7/2:R 26