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Highway Research Board Bulletin, Issue 142, 8p
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Highway Research Board Proceedings, Volume 35
Highway Research Board Proceedings, Volume 33
Highway Research Board Bulletin, Issue 74
Highway Research Board Bulletin, Issue 35, pp 19-44
Highway Research Board Roadside Development Committee Reports
Highway Research Board Proceedings, Volume 23
Highway Research Board Proceedings, Volume 19
Highway Research Board Proceedings, Volume 18
Highway Research Board Proceedings, Volume 17
Highway Research Board Proceedings, Volume 14
Highway Research Board Proceedings, Volume 12
Highway Research Board Proceedings, Volume 7
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