Hennes, Robert Graham Fundamentals of transportation engineering / Robert G. Hennes, Martin I. Ekse - New York : Mc Graw-Hill , 1955 - 520 p. : ill. ; 23 cm. - Mc Graw-Hill Civil engineering series . Includes index ISBN: $ 8.50 Subjects--Topical Terms: Transportation engineeringRailroad engineeringAeronauticsRoads Dewey Class. No.: 625