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- Corporate/Agency Authors:
- Publications Division and Agriculture Department
- Publisher:
- Publications Division
- Date:
- [1921.]
- Corporate/Agency Authors:
- Farm Management and Farm Economics Office and Agriculture Department
- Publisher:
- Farm Management and Farm Economics Office
- Date:
- [1921.]
- Corporate/Agency Authors:
- States Relations Service and Agriculture Department
- Publisher:
- States Relations Service
- Date:
- Jan. 1921
- Corporate/Agency Authors:
- Soils Bureau and Agriculture Department
- Publisher:
- Soils Bureau
- Date:
- 1921
- Corporate/Agency Authors:
- Plant Industry Bureau and Agriculture Department
- Publisher:
- Plant Industry Bureau
- Date:
- [1921.]
- Corporate/Agency Authors:
- Soils Bureau and Agriculture Department
- Publisher:
- Soils Bureau
- Date:
- 1921
- Corporate/Agency Authors:
- Soils Bureau and Agriculture Department
- Publisher:
- Soils Bureau
- Date:
- 1921
- Corporate/Agency Authors:
- States Relations Service and Agriculture Department
- Publisher:
- States Relations Service
- Date:
- Feb. 1917, revised Sept. 1919, reprint Jan. 1921
- Corporate/Agency Authors:
- Entomology Bureau and Agriculture Department
- Publisher:
- Entomology Bureau
- Date:
- [Nov. 8, 1915, 2d revision June, 1921.] 1921
- Corporate/Agency Authors:
- Entomology Bureau and Agriculture Department
- Publisher:
- Entomology Bureau
- Date:
- 1921