Cita APA (7th ed.)

Bowersox, D. J., Calabro, P. J., & Wagenheim, G. D. (1981). Introduction to Transportation. Macmillan Publishing Co., Inc.

Cita Chicago (17th ed.)

Bowersox, Donald J., Pat J. Calabro, i George D. Wagenheim. Introduction to Transportation. New York: Macmillan Publishing Co., Inc, 1981.

Cita MLA (9th ed.)

Bowersox, Donald J., et al. Introduction to Transportation. Macmillan Publishing Co., Inc, 1981.

Atenció: Aquestes cites poden no estar 100% correctes.