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- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931.]
- SuDoc number:
- A 22.6:11/ind.
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931.]
- SuDoc number:
- A 22.6:12/10
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931.]
- SuDoc number:
- A 22.6:12/1
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931.]
- SuDoc number:
- A 22.6:12/2
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931.]
- SuDoc number:
- A 22.6:12/6
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931.]
- SuDoc number:
- A 22.6:12/7
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Aug. 1926, reprint 1931.]
- SuDoc number:
- A 1.9:1500/1-4
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931.]
- SuDoc number:
- A 22.1:931
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Jan. 1922, revised Oct. 1928, reprint 1931.]
- SuDoc number:
- A 1.9:1227/2-3
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931.]
- SuDoc number:
- A 22.6/a:So 34/4