Mertins, Herman. National transportation policy in transition. - Lexington, Mass. Lexington Books 1972. - xvii, 224 p. Includes index. Bibliography: p. 195-202. ISBN: 0669844268 LCCN: 72003553 Subjects--Topical Terms: Transportation and state--United States. LC Class. No.: HE203 / .M38 Dewey Class. No.: 380.5/0973