.Tyworth, J. E., .Cavinato, J. L., & Langley, C. J. (1987). Traffic management: Planning, operations, and control. .Addison-Wesley Pub. Co.
Chicago-viite (17. p.).Tyworth, John E., Joseph L. .Cavinato, ja C. John Langley. Traffic Management: Planning, Operations, and Control. Reading, Mass: .Addison-Wesley Pub. Co, 1987.
MLA-viite (9. p.).Tyworth, John E., et al. Traffic Management: Planning, Operations, and Control. .Addison-Wesley Pub. Co, 1987.