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- Corporate/Agency Authors:
- Plant Industry, Soils, and Agricultural Engineering Bureau, Agricultural Research Administration, and Agriculture Department
- Publisher:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Date:
- [Dec. 1937, revised Jan. 1944.] [1944.]
- SuDoc number:
- A 1.35:140/4
- Corporate/Agency Authors:
- Plant Industry, Soils, and Agricultural Engineering Bureau and Agricultural Research Administration
- Publisher:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Date:
- [Feb. 1939, slightly revised Dec. 1943.] [1943]
- SuDoc number:
- A 1.35:172/2
- Corporate/Agency Authors:
- Plant Industry, Soils, and Agricultural Engineering Bureau and Agricultural Research Administration
- Publisher:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Date:
- Aug. 1937 slightly revised July 1943. [1943]
- SuDoc number:
- A 1.35:127/3
- Corporate/Agency Authors:
- Plant Industry, Soils, and Agricultural Engineering Bureau, Agricultural Research Administration, and Agriculture Department
- Publisher:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Date:
- [Oct. 1937, slightly revised July 1943.] [1943.]
- SuDoc number:
- A 1.35:141/3
- Corporate/Agency Authors:
- Plant Industry, Soils, and Agricultural Engineering Bureau, Agricultural Research Administration, and Agriculture Department
- Publisher:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Date:
- [Apr. 1943.]
- SuDoc number:
- A 1.35:232