OECD. (1973). Techniques of improving urban conditions by restraint of road traffic. Paris: Organisation for Economic Co-operation and Development.
Dyfyniad Arddull ChicagoOECD. Techniques of Improving Urban Conditions By Restraint of Road Traffic. Paris: Organisation for Economic Co-operation and Development, 1973.
Dyfyniad MLAOECD. Techniques of Improving Urban Conditions By Restraint of Road Traffic. Paris: Organisation for Economic Co-operation and Development, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.