.Tyworth, J. E., .Cavinato, J. L., & Langley, C. J. (1987). Traffic management: Planning, operations, and control. .Addison-Wesley Pub. Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र.Tyworth, John E., Joseph L. .Cavinato, और C. John Langley. Traffic Management: Planning, Operations, and Control. Reading, Mass: .Addison-Wesley Pub. Co, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्र.Tyworth, John E., et al. Traffic Management: Planning, Operations, and Control. .Addison-Wesley Pub. Co, 1987.
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