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Highway Research Record, Issue 103, 113p
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Highway Research Board Bulletin, Issue 324, 95p
Highway Research Board Bulletin, Issue 336, pp 51-60
Highway Research Board Bulletin, Issue 247, 35p
Highway Research Board Bulletin, Issue 244, 97p
Highway Research Board Bulletin, Issue 191, 64p
Highway Research Board Bulletin, Issue 146, 82p
Highway Research Board Bulletin, Issue 146, 32p
Highway Research Board Proceedings, Volume 36
Highway Research Board Bulletin, Issue 127, 65p
Highway Research Board Bulletin, Issue 127, 14p
Highway Research Abstracts
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Highway Research Board Bulletin, Issue 89, 75p
Highway Research Board Bulletin, Issue 43, 51p
Highway Research Board Bulletin, Issue 34, 53p
Highway Research Board Bulletin, Issue 34, pp 1-2
Highway Research Board Proceedings, Volume 27
Highway Research Board Proceedings, Volume 23
Highway Research Board Proceedings, Volume 22
Rural Traffic Problems
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