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- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [July, 1927.]
- SuDoc number:
- A 1.9:1529
- Corporate/Agency Authors:
- Public Roads Bureau
- Publisher:
- Public Roads Bureau
- Date:
- [June, 1917, revised June, 1927.] [1927.]
- SuDoc number:
- A 1.9:815/3
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [May, 1927.]
- SuDoc number:
- A 1.9:1526
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Feb. 1927.]
- SuDoc number:
- A 1.9:1518
- Corporate/Agency Authors:
- Public Roads Bureau
- Publisher:
- Public Roads Bureau
- Date:
- [June, 1917, revised July, 1926 reprint 1927.]
- SuDoc number:
- A 1.9:805/5-2
- Corporate/Agency Authors:
- Public Roads Bureau and Plant Industry Bureau
- Publisher:
- Public Roads Bureau
- Date:
- [Revised Oct. 1925, reprint 1927.]
- SuDoc number:
- A 1.9:865/3-2
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [May, 1919, revised June, 1926, reprint 1927.]
- SuDoc number:
- A 1.9:1045/2-2
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [June, 1917, revised Jan. 1926, reprint] 1927
- SuDoc number:
- A 1.9:813/4-2
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [Aug. 1926.]
- SuDoc number:
- A 1.9:1500
- Corporate/Agency Authors:
- Public Roads Bureau and Agriculture Department
- Publisher:
- Public Roads Bureau
- Date:
- [June, 1917, revised July, 1926.] [1926.]
- SuDoc number:
- A 1.9:805/5