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Highway Research Board Proceedings, Volume 26
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Highway Research Board Current Road Problems, Issue 12
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Highway Research Board Proceedings, Volume 25
Highway Research Board Research Reports, Issue 3B, 20p
Highway Research Board Proceedings, Volume 23
Highway Research Board Wartime Road Problems, Issue 5, 27p
Highway Research Board Proceedings, Volume 22
Highway Research Board Proceedings, Volume 21
Highway Research Board Proceedings, Volume 20
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