Taff, Charles A. 1916-1997. Commercial motor transportation. - Chicago, R. D. Irwin, 1950. - x, 413 p. illus., maps. 24 cm. Bibliography: p. [399]-405. LCCN: 50014640 Subjects--Topical Terms: Transportation, Automotive--United States. LC Class. No.: HE5623 / .T3 Dewey Class. No.: 388.3