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Highway Research Board Proceedings, Volume 30
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Highway Research Abstracts
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Highway Research Board Research Reports
Highway Research Board Proceedings, Volume 29
Highway Research Board Research Reports, Issue 7B, 122p
Highway Research Board Research Reports, Issue 7B, 12p
Highway Research Board Research Reports, Issue 7B, 17p
Highway Research Board Research Reports, Issue 7B, 4p
Highway Research Board Research Reports, Issue 7B, 16p
Highway Research Board Research Reports, Issue 7B, 14p
Highway Research Board Proceedings, Volume 28
Highway Research Board Bulletin, Issue 14, pp 18-19
Highway Research Board Bulletin, Issue 14, pp 19-20
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