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Highway Research Record, Issue 206, pp 60-65
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Highway Research Record, Issue 206, pp 46-52
Highway Research Record, Issue 203, pp 57-76
Highway Research Circular, Issue 37, 73p
Highway Research Record, Issue 123, 48p
Highway Research Record, Issue 123, pp 1-16
Highway Research Board Special Report, Issue 88, 81 pp
Highway Research Record, Issue 111, pp 12-23
Highway Research Record, Issue 93, 80p
Highway Research Record, Issue 93, pp 2-24
Highway Research Record, Issue 93, pp 31-37
Highway Research Record, Issue 93, pp 54-61
Highway Research Record, Issue 23, pp 2-6
Highway Research Record, Issue 23, pp 60-65
Highway Research Record, Issue 23, pp 79-84
Highway Research Board Roadside Development Committee Reports
Highway Research Board Bulletin, Issue 242, 71p
Highway Research Board Bulletin, Issue 286
Highway Research Board Bulletin, Issue 242, 9p
Highway Research Board Bulletin, Issue 236, 22p
Highway Research Abstracts
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Highway Research Board Bulletin, Issue 219, 4p
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