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Highway Research Board Research Reports, Issue 16B, 5p
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Highway Research Board Proceedings, Volume 33
Highway Research Board Research Reports, Issue 15B, 52p
Highway Research Board Research Reports, Issue 15B, 19p
Highway Research Board Proceedings, Volume 32
Highway Research Board Bulletin, Issue 58, 84p
Highway Research Board Roadside Development Committee Reports
Highway Research Board Proceedings, Volume 31
Highway Research Board Special Report, Issue 2
Highway Research Board Bulletin, Issue 44, pp 1-10
Highway Research Board Proceedings, Volume 30
Highway Research Board Research Reports, Issue 9A, 79p
Highway Research Board Proceedings, Volume 29
Highway Research Board Bulletin, Issue 21, pp 10-14
Highway Research Board Roadside Development Committee Reports, 18p
Highway Research Board Proceedings, Volume 28
Highway Research Board Bulletin, Issue 5, 23p
Highway Research Board Proceedings, Volume 26
Highway Research Board Proceedings, Volume 25
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