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Highway Research Board Bulletin, Issue 57
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Highway Research Board Bulletin, Issue 36, 28p
Highway Research Board Bulletin, Issue 35, pp 80-89
Highway Research Board Bulletin, Issue 36, pp 7-24
Highway Research Board Bulletin, Issue 36, pp 1-6
Highway Research Board Proceedings, Volume 30
Highway Research Abstracts
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Highway Research Board Proceedings, Volume 28
Highway Research Board Proceedings, Volume 27
Highway Research Board Proceedings, Volume 25
Highway Research Board Proceedings, Volume 22
Rural Traffic Problems
Highway Research Board Proceedings, Volume 14
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