APA (7th ed.) Citation

Ruppenthal, K. M. (1962). Transportation frontiers. Stanford Univ.

Chicago Style (17th ed.) Citation

Ruppenthal, Karl Maxwell. Transportation Frontiers. Stanford, Calif., Grad. Sch. of Bus: Stanford Univ, 1962.

MLA (9th ed.) Citation

Ruppenthal, Karl Maxwell. Transportation Frontiers. Stanford Univ, 1962.