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Highway Research Board Research Reports, Issue 1D 1948, 56p
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Highway Research Board Research Reports, Issue 5B, 87p
Highway Research Board Roadside Development Committee Reports
Highway Research Board Proceedings, Volume 27
Highway Research Board Bulletin, Issue 8
Highway Research Board Bulletin, Issue 6, pp 7-14
Highway Research Abstracts
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Highway Research Board Proceedings, Volume 26
Highway Research Board Research Reports, Issue 4B, 141p
Highway Research Board Proceedings, Volume 25
Highway Research Board Research Reports, Issue 1D 1946, 79p
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