Cita APA (7a ed.)

Ubbels, B., Enoch, M., Potter, S., & Nijkamp, P. (2004). Unfare solutions: Local earmarked charges to fund public transport. Spon Press.

Cita Chicago Style (17a ed.)

Ubbels, Barry, Marcus Enoch, Stephen Potter, y Peter Nijkamp. Unfare Solutions: Local Earmarked Charges to Fund Public Transport. New York: Spon Press, 2004.

Cita MLA (9a ed.)

Ubbels, Barry, et al. Unfare Solutions: Local Earmarked Charges to Fund Public Transport. Spon Press, 2004.