APA (7th ed.) Citation

Ruppenthal, K. M. (1962). Transportation frontiers. Graduate School of Business, Stanford University.

Chicago Style (17th ed.) Citation

Ruppenthal, Karl Maxwell. Transportation Frontiers. Stanford, Calif.: Graduate School of Business, Stanford University, 1962.

MLA (9th ed.) Citation

Ruppenthal, Karl Maxwell. Transportation Frontiers. Graduate School of Business, Stanford University, 1962.

Warning: These citations may not always be 100% accurate.