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- Corporate/Agency Authors:
- Weather Bureau and Agriculture Department
- Publisher:
- Weather Bureau
- Date:
- 1920
- Corporate/Agency Authors:
- Weather Bureau and Agriculture Department
- Publisher:
- Weather Bureau
- Date:
- 1920
- Corporate/Agency Authors:
- Plant Industry Bureau and Agriculture Department
- Publisher:
- Plant Industry Bureau
- Date:
- June 24, 1915, reprint, Jan. 1920
- Corporate/Agency Authors:
- States Relations Service and Agriculture Department
- Publisher:
- States Relations Service
- Date:
- Jan. 22, 1914, 2d revise, Sept. 1919. 1920
- Corporate/Agency Authors:
- Weather Bureau and Agriculture Department
- Publisher:
- Weather Bureau
- Date:
- 1920
- Corporate/Agency Authors:
- Chemistry Bureau and Agriculture Department
- Publisher:
- Chemistry Bureau
- Date:
- [Reprint with slight change] 1920
- Corporate/Agency Authors:
- Agriculture Department
- Publisher:
- Agriculture Department
- Date:
- [1920.]
- Corporate/Agency Authors:
- Agriculture Department
- Publisher:
- Agriculture Department
- Date:
- 1920
- Corporate/Agency Authors:
- Agriculture Department
- Publisher:
- Agriculture Department
- Date:
- 1920
- Corporate/Agency Authors:
- Agriculture Department
- Publisher:
- Agriculture Department
- Date:
- 1920