Tolley, R. S. (1997). The The greening of urban transport: Planning for walking and cycling in Western cities (2nd ed.). Wiley & Sons.
Cita Chicago Style (17a ed.)Tolley, Rodney S. The The Greening of Urban Transport: Planning for Walking and Cycling in Western Cities. 2nd ed. New York [etc.]: Wiley & Sons, 1997.
Cita MLA (9a ed.)Tolley, Rodney S. The The Greening of Urban Transport: Planning for Walking and Cycling in Western Cities. 2nd ed. Wiley & Sons, 1997.
Precaución: Estas citas no son 100% exactas.