Webster, P. B., Skinner, A. J., & Helliar-Symons, R. D. (1992). Installation and evaluation of chevron markings on motorways. Traffic Safety Division, Traffic Group, Transport Research Laboratory.
Chicago Style (17th ed.) CitationWebster, P. B., A. J. Skinner, and R. D. Helliar-Symons. Installation and Evaluation of Chevron Markings on Motorways. Crowthorne, Berkshire: Traffic Safety Division, Traffic Group, Transport Research Laboratory, 1992.
MLA (9th ed.) CitationWebster, P. B., et al. Installation and Evaluation of Chevron Markings on Motorways. Traffic Safety Division, Traffic Group, Transport Research Laboratory, 1992.
Warning: These citations may not always be 100% accurate.