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Highway Research Abstracts
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Highway Research Board Proceedings, Volume 27
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Highway Research Board Proceedings, Volume 26
Highway Research Board Proceedings, Volume 24
Highway Research Board Proceedings, Volume 22
Highway Research Board Proceedings, Volume 21
Highway Research Board Proceedings, Volume 20
Highway Research Board Roadside Development Committee Reports
Highway Research Board Proceedings, Volume 19
Rural Traffic Problems
Highway Research Board Proceedings, Volume 18
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