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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:
- [May 1943.]
- SuDoc number:
- A 1.9:1936
- Corporate/Agency Authors:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Publisher:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Date:
- [May 1943.]
- SuDoc number:
- A 1.9:1937
- Corporate/Agency Authors:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Publisher:
- Plant Industry, Soils, and Agricultural Engineering Bureau
- Date:
- [May 1943.]
- SuDoc number:
- A 1.9:1939
- 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 1.9:1931
- 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 1.9:1933
- 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:
- [Mar. 1931, revised 1943.] [1943.]
- SuDoc number:
- A 1.9:1659/2
- 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. 1920, revised May 1929, reprint 1943.]
- SuDoc number:
- A 1.9:1166/2-9
- 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. 1942.]
- SuDoc number:
- A 1.9:1920