Proceedings of a conference on the economics of highway transport called by the Highway and highway transport education committee held at the University of Maryland, College Park, July 27, 1921
By: ed. by C. J. Tilden.
Contributors: Tilden, Charles Joseph, 1873-; Highway Education Board
Publisher: The Highway and highway transport education committee
Published: 1922
Place of publication: Washington D.C
Subjects: Roads -- Study and teaching; Roads -- United States; Highway law -- United States
Other titles: The economics of highway trasport.