Subgrade soil exhibit of Bureau of Public Roads, U.S. Department of Agriculture, 6th Congress of Permanent International Association of Road Congresses.
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| Format: | Government Document eBook |
| Language: | English |
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Washington :
U.S. GPO,
1930.
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| Online Access: | Connect to the full text of this electronic document |
| Item Description: | [on soil research activities and results]. Record is based on bibliographic data in ProQuest U.S. Executive Branch Documents, 1910-1932. Reuse except for individual research requires license from ProQuest, LLC. Electronic resource. |
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| Physical Description: | 1 online resource (32 pages) |
| Format: | System requirements: PDF reader software. |