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Highway Research Board Proceedings, Volume 29
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Highway Research Board Roadside Development Committee Reports
Highway Research Board Proceedings, Volume 28
Highway Research Board Bulletin, Issue 14, pp 21-40
Highway Research Board Proceedings, Volume 27
Highway Research Abstracts
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Highway Research Board Proceedings, Volume 26
Highway Research Board Current Road Problems, Issue 12
Highway Research Board Bulletin, Issue 1, 21p
Highway Research Board Proceedings, Volume 25
Highway Research Board Research Reports, Issue 2F, 66p
Highway Research Board Research Reports, Issue 1d, 42p
Highway Research Board Proceedings, Volume 24
Highway Research Board Proceedings, Volume 23
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