Proceedings of a conference on highway traffic regulation held at Yale university under the auspices of the Highway and highway transport education committee, May 23, 1921,
|Corporate Author:||Conference on highway engineering and highway transport education (Regional)|
|Other Authors:||Tilden, Charles Joseph, 1873-|
Washington, D.C., The Committee [1921?]
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Roads > United States
Traffic regulations > United States.
|Original Classification Number:||HE 332 .C748 1921 Y2|
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