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- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Dept.
- Publisher:
- Soil Conservation Service
- Date:
- [Jan. 9, 1950.]
- SuDoc number:
- A 57.6:F 68
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Dept.
- Publisher:
- Soil Conservation Service
- Date:
- [1950.]
- SuDoc number:
- A 57.6:F 68/supp.