Object-lesson and experimental roads, and bridge construction, 1912-13.
Material type:
TextSeries: Bulletin of the U.S. Department of Agriculture ; no. 53Publication details: Washington : Govt. Print. Off., 1913.Description: 34 p. ; 23 cmOther title: - Object lesson and experimental roads, and bridge construction, 1912-13
- S21 .A7 no. 53
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Contribution from the Office of Public Roads.
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