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Highway Research Board Bulletin, Issue 14, pp 19-20
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Highway Research Board Proceedings, Volume 27
Highway Research Board Bulletin, Issue 14, pp 21-40
Highway Research Board Research Reports, Issue 5B, 87p
Highway Research Abstracts
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Highway Research Board Bulletin, Issue 5, 23p
Highway Research Board Proceedings, Volume 26
Highway Research Board Research Reports, Issue 4B, 141p
Highway Research Board Current Road Problems, Issue 12
Highway Research Board Bulletin, Issue 1, 21p
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