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- Corporate/Agency Authors:
- Entomology Bureau and Agriculture Department
- Publisher:
- Entomology Bureau
- Date:
- Mar. 16, 1920
- Corporate/Agency Authors:
- States Relations Service and Agriculture Department
- Publisher:
- States Relations Service
- Date:
- Mar. 15, 1920
- Corporate/Agency Authors:
- Entomology Bureau and Agriculture Department
- Publisher:
- Entomology Bureau
- Date:
- Mar. 10, 1920
- Corporate/Agency Authors:
- Weather Bureau and Agriculture Department
- Publisher:
- Weather Bureau
- Date:
- [Mar. 10] 1920
- Corporate/Agency Authors:
- Chemistry Bureau and Agriculture Department
- Publisher:
- Chemistry Bureau
- Date:
- Mar. 10, 1920
- Corporate/Agency Authors:
- Plant Industry Bureau and Agriculture Department
- Publisher:
- Plant Industry Bureau
- Date:
- Mar. 6, 1920
- Corporate/Agency Authors:
- Weather Bureau and Agriculture Department
- Publisher:
- Weather Bureau
- Date:
- Mar. 3-31, 1920
- Corporate/Agency Authors:
- Farm Management and Farm Economics Office and Agriculture Department
- Publisher:
- Farm Management and Farm Economics Office
- Date:
- Mar. 1914, revised Mar. 1920. 1920
- Corporate/Agency Authors:
- Entomology Bureau and Agriculture Department
- Publisher:
- Entomology Bureau
- Date:
- [Mar. 1920.]
- Corporate/Agency Authors:
- Entomology Bureau and Agriculture Department
- Publisher:
- Entomology Bureau
- Date:
- Dec. 1917, revised Mar. 1920. 1920