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- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- June 1940
- SuDoc number:
- A 57.27/2:1
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- May 1940
- SuDoc number:
- A 57.24:12
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- May 1940
- SuDoc number:
- A 57.15:31
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- [June 1928, revised May 1937, slightly revised May 1940.] [1940.]
- SuDoc number:
- A 1.9:1556/3
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- May 1940
- SuDoc number:
- A 1.38:372
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- May 1940
- SuDoc number:
- A 1.36:695
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- Apr. 1940
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- Apr. 1940
- SuDoc number:
- A 57.2:Se 2
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- Mar. 1940
- SuDoc number:
- A 57.21:27
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- Mar. 1940
- SuDoc number:
- A 57.2:Ag 8/3