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Highway Research Board Proceedings, Volume 30
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Highway Research Board Bulletin, Issue 29, 20p
Highway Research Board Bulletin, Issue 29, pp 15-20
Highway Research Board Bulletin, Issue 29, PP 25-33
Highway Research Board Bulletin, Issue 21, 14p
Highway Research Board Bulletin, Issue 21, pp 1-6
Highway Research Board Proceedings, Volume 28
Highway Research Board Bulletin, Issue 13, pp 9-29
Highway Research Board Bulletin, Issue 12
Highway Research Board Bulletin, Issue 6, pp 1-7
Highway Research Board Bulletin, Issue 6, pp 14-33
Highway Research Board Bulletin, Issue 6, pp 7-14
Highway Research Abstracts
Highway Research Board Proceedings, Volume 25
Highway Research Board Proceedings, Volume 23
Highway Research Board Roadside Development Committee Reports
Highway Research Board Proceedings, Volume 22
Highway Research Board Proceedings, Volume 21
Highway Research Board Proceedings, Volume 20
Rural Traffic Problems
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