National Research Council. Highway Research Board. (1962). Urban transportation: Demand and coordination : Presented at the 41st annual meeting January 8-12,1962.
Dyfyniad Arddull ChicagoNational Research Council. Highway Research Board. Urban Transportation: Demand and Coordination : Presented at the 41st Annual Meeting January 8-12,1962. Washington, D.C, 1962.
Dyfyniad MLANational Research Council. Highway Research Board. Urban Transportation: Demand and Coordination : Presented at the 41st Annual Meeting January 8-12,1962. 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.