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Highway Research Board Wartime Road Problems, Issue 7, 30p
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Highway Research Board Proceedings, Volume 22
Highway Research Board Proceedings, Volume 21
Highway Research Board Proceedings, Volume 20
Highway Research Board Proceedings, Volume 19
Highway Research Board Proceedings, Volume 18
Highway Research Board Proceedings, Volume 17, pp 83-91
Highway Research Board Proceedings, Volume 17, pp 78-83
Highway Research Board Proceedings, Volume 17
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