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- Corporate/Agency Authors:
- Agricultural Economics Bureau and Agriculture Department
- Publisher:
- Agricultural Economics Bureau
- Date:
- June, 1931
- SuDoc number:
- A 1.36:239
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- June, 1931
- SuDoc number:
- A 1.36:254
- Corporate/Agency Authors:
- Plant Industry Bureau and Agriculture Department
- Publisher:
- Plant Industry Bureau
- Date:
- June, 1931
- SuDoc number:
- A 1.36:246
- Corporate/Agency Authors:
- Forest Service and Agriculture Department
- Publisher:
- Forest Service
- Date:
- June, 1931
- SuDoc number:
- A 1.36:248
- Corporate/Agency Authors:
- Agricultural Economics Bureau and Agriculture Department
- Publisher:
- Agricultural Economics Bureau
- Date:
- May, 1931
- SuDoc number:
- A 1.36:244
- Corporate/Agency Authors:
- Plant Industry Bureau and Agriculture Department
- Publisher:
- Plant Industry Bureau
- Date:
- May, 1931
- SuDoc number:
- A 1.36:240
- Corporate/Agency Authors:
- Plant Industry Bureau and Agriculture Department
- Publisher:
- Plant Industry Bureau
- Date:
- Apr. 1931
- SuDoc number:
- A 1.36:235
- Corporate/Agency Authors:
- Entomology Bureau and Agriculture Department
- Publisher:
- Entomology Bureau
- Date:
- Apr. 1931
- SuDoc number:
- A 1.36:233
- Corporate/Agency Authors:
- Agricultural Economics Bureau and Agriculture Department
- Publisher:
- Agricultural Economics Bureau
- Date:
- Apr. 1931
- SuDoc number:
- A 1.36:237
- Corporate/Agency Authors:
- Plant Industry Bureau and Agriculture Department
- Publisher:
- Plant Industry Bureau
- Date:
- Apr. 1931
- SuDoc number:
- A 1.36:236