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Highway Research Board Proceedings, Volume 27
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Highway Research Board Proceedings, Volume 26
Highway Research Board Current Road Problems, Issue 13, 35p
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Highway Research Board Proceedings, Volume 25
Highway Research Board Proceedings, Volume 24
Highway Research Board Proceedings, Volume 23
Highway Research Board Proceedings, Volume 23, pp 497-529
Highway Research Board Wartime Road Problems, Issue 6, 16p
Highway Research Board Proceedings, Volume 22
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