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Highway Research Circular, Issue 25, 12p
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Highway Research Circular, Issue 20, 14p
Highway Research Circular, Issue 6, pp 9-19
Highway Research Board Roadside Development Committee Reports, 7p
Highway Research Board Proceedings, Issue 35, 14p
Highway Research Board Special Report, Issue 5, 214p
Highway Research Board Roadside Development Committee Reports, 18p
Highway Research Board Roadside Development Committee Reports, 15p
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