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- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931]
- SuDoc number:
- A 22.9:W 27/3/E, W
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [1931]
- SuDoc number:
- A 22.9:W 75/2/NE, NW, S
- 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 1.36:194
- 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. 1930
- SuDoc number:
- A 1.36:200
- 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:
- Sept. 1928, revised Sept. 1930. 1930
- SuDoc number:
- A 1.5/2:109/2
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- Aug. 1930
- SuDoc number:
- A 1.4/2:132