Ullman, G. L., Porter, R. J., & Karkee, G. J. (2009). Monitoring work zone safety and mobility impacts in Texas. Texas Transportation Institute, Texas A & M University ; Available through the National Technical Information Service.
Chicago Style (17th ed.) CitationUllman, Gerald L., Richard J. Porter, and Ganesh Jung Karkee. Monitoring Work Zone Safety and Mobility Impacts in Texas. College Station, TX : Springfield, Va.: Texas Transportation Institute, Texas A & M University ; Available through the National Technical Information Service, 2009.
MLA (9th ed.) CitationUllman, Gerald L., et al. Monitoring Work Zone Safety and Mobility Impacts in Texas. Texas Transportation Institute, Texas A & M University ; Available through the National Technical Information Service, 2009.