Cita APA

Santos, G., & Richardson, H. (2008). The London congestion charging scheme, 2003-2006. Edward Elgar.

Citación estilo Chicago

Santos, G., and H. Richardson. The London Congestion Charging Scheme, 2003-2006. Edward Elgar, 2008.

Cita MLA

Santos, G., and H. Richardson. The London Congestion Charging Scheme, 2003-2006. Edward Elgar, 2008.

Warning: These citations may not always be 100% accurate.