Cita APA (7a ed.)
Speck, J. Walkable City Rules: 101 Steps to Making Better Places. Island Press.
Cita estilo Chicago (17a ed.)
Speck, Jeff. Walkable City Rules: 101 Steps to Making Better Places. Washington, DC, EUA: Island Press.
Cita MLA (9a ed.)
Speck, Jeff. Walkable City Rules: 101 Steps to Making Better Places. Island Press.
Precaución: Estas citas no son 100% exactas.