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Highway Research Board Bulletin, Issue 60
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Highway Research Board Proceedings, Volume 31
Highway Research Board Bulletin, Issue 18
Highway Research Board Bulletin, Issue 12, pp 20-46
Highway Research Board Bulletin, Issue 10, pp 19-26
Highway Research Board Proceedings, Volume 23
Highway Research Board Proceedings, Volume 22
Highway Research Board Proceedings, Volume 20
Highway Research Board Proceedings, Volume 19
Highway Research Board Roadside Development Committee Reports
Highway Research Board Proceedings, Volume 13
Highway Research Board Proceedings, Volume 7
Highway Research Board Proceedings, Volume 6
Highway Research Board Proceedings, Volume 5
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