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- Corporate/Agency Authors:
- Biological Survey Bureau and Agriculture Department
- Publisher:
- Biological Survey Bureau
- Date:
- [Aug. 1920, revised June 1939.] [1939.]
- SuDoc number:
- A 1.9:1102/2
- Corporate/Agency Authors:
- Biological Survey Bureau and Agriculture Department
- Publisher:
- Biological Survey Bureau
- Date:
- [June 1939.]
- SuDoc number:
- A 1.38:355
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- June 1939
- SuDoc number:
- A 57.23:25
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- June 1939
- SuDoc number:
- A 57.23:23
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- June 1939
- SuDoc number:
- A 57.23:24
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- June 1939
- SuDoc number:
- A 57.23:22
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- May 1939
- SuDoc number:
- A 57.23:19
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- May 1939
- SuDoc number:
- A 57.23:16
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- May 1939
- SuDoc number:
- A 57.23:15
- Corporate/Agency Authors:
- Soil Conservation Service and Agriculture Department
- Publisher:
- Soil Conservation Service
- Date:
- May 1939
- SuDoc number:
- A 57.23:17