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- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Feb. 1924, revised June, 1928, reprint 1931.]
- SuDoc number:
- A 1.9:1386/2-3
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [May, 1920, revised Jan. 1931.] [1931.]
- SuDoc number:
- A 1.9:1131/5
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Nov. 1930.]
- SuDoc number:
- A 1.9:1649
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Oct. 1930.]
- SuDoc number:
- A 1.9:1636
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Oct. 1924, revised Oct. 1930.] [1930.]
- SuDoc number:
- A 1.9:1426/2
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Sept. 1930.]
- SuDoc number:
- A 1.9:1635
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [June, 1930.]
- SuDoc number:
- A 1.9:1630
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [July, 1929, reprint 1930.]
- SuDoc number:
- A 1.9:1572/1-2
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Oct. 1922, reprint 1930.]
- SuDoc number:
- A 1.9:1279/1-7
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [May, 1926, reprint 1930.]
- SuDoc number:
- A 1.9:1480/1-4