Austroads. (1993). Traffic signals: A guide to the design of traffic signal installations (Rev. ed.). AUSTROADS.
Dyfyniad Arddull ChicagoAustroads. Traffic Signals: A Guide to the Design of Traffic Signal Installations. Rev. ed. Sydney: AUSTROADS, 1993.
Dyfyniad MLAAustroads. Traffic Signals: A Guide to the Design of Traffic Signal Installations. Rev. ed. AUSTROADS, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.