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- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Dept.
- Publisher:
- Soil Conservation Service
- Date:
- Dec. 1968
- SuDoc number:
- A 57.6/2:C 73/968
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Dept.
- Publisher:
- Soil Conservation Service
- Date:
- [Portland, Oreg. 1967.]
- SuDoc number:
- A 57.6/2:An 5