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Highway Research Board Bulletin, Issue 20
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Highway Research Board Bulletin, Issue 21, pp 1-6
Highway Research Abstracts
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Highway Research Board Proceedings, Volume 28
Highway Research Board Roadside Development Committee Reports
Highway Research Board Research Reports, Issue 6B, 35p
Highway Research Board Research Reports, Issue 6B, 4p
Highway Research Board Bulletin, Issue 14, 40p
Highway Research Board Proceedings, Volume 27
Highway Research Board Bulletin, Issue 13, pp 67-76
Highway Research Board Bulletin, Issue 13, pp 55-65
Highway Research Board Bulletin, Issue 14, pp 12-17
Highway Research Board Bulletin, Issue 14, pp 1-11
Highway Research Board Bulletin, Issue 13, pp 30-47
Highway Research Board Bulletin, Issue 14, pp 21-40
Highway Research Board Bulletin, Issue 13, pp 9-29
Highway Research Board Bulletin, Issue 13, pp 86-89
Highway Research Board Research Reports, Issue 1D 1948, 56p
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