Cita APA (7th ed.)

Simpson, B. J. (1994). Urban public transport today. E & FN Spon.

Cita Chicago (17th ed.)

Simpson, Barry J. Urban Public Transport Today. Londres: E & FN Spon, 1994.

Cita MLA (9th ed.)

Simpson, Barry J. Urban Public Transport Today. E & FN Spon, 1994.