APA (7th ed.) Citation

Small, K. A., & Verhoef, E. T. (2007). The economics of urban transportation. Routledge.

Chicago Style (17th ed.) Citation

Small, Kenneth A., and Erik T. Verhoef. The Economics of Urban Transportation. New York: Routledge, 2007.

MLA (9th ed.) Citation

Small, Kenneth A., and Erik T. Verhoef. The Economics of Urban Transportation. Routledge, 2007.