International Traffic Conflicts Technique Workshop Paris, Shippey, J., & Older, S. J. (1980). Proceedings of the second International Traffic Conflicts Technique Workshop. Transport and Road Research Laboratory, Road User Characteristics Division.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Traffic Conflicts Technique Workshop Paris, J. Shippey, और S. J. Older. Proceedings of the Second International Traffic Conflicts Technique Workshop. Crowthorne, Berk: Transport and Road Research Laboratory, Road User Characteristics Division, 1980.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternational Traffic Conflicts Technique Workshop Paris, et al. Proceedings of the Second International Traffic Conflicts Technique Workshop. Transport and Road Research Laboratory, Road User Characteristics Division, 1980.