NAASRA. (1987). Traffic signals, a guide to the design of traffic signals installation. Naasra.
Chicago Style (17th ed.) CitationNAASRA. Traffic Signals, a Guide to the Design of Traffic Signals Installation. Naasra, 1987.
MLA (8th ed.) CitationNAASRA. Traffic Signals, a Guide to the Design of Traffic Signals Installation. Naasra, 1987.
Warning: These citations may not always be 100% accurate.