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Highway Research Board Bulletin, Issue 90
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Highway Research Board Proceedings, Volume 31
Highway Research Board Roadside Development Committee Reports
Highway Research Board Bulletin, Issue 42, pp 1-13
Highway Research Board Bulletin, Issue 13, pp 67-76
Highway Research Board Proceedings, Volume 26
Highway Research Board Proceedings, Volume 20
Highway Research Board Proceedings, Volume 18
Highway Research Board Proceedings, Volume 17
Highway Research Board Proceedings, Volume 14
Highway Research Board Proceedings, Volume 10
Highway Research Board Proceedings, Volume 8
Highway Research Board Proceedings, Volume 6
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