Schrank, D. L., Turner, S., & Lomax, T. J. (1993). Estimates of urban roadway congestion, 1990. Texas Transportation Institute, Texas A&M University System ; [Available through the National Technical Information Service].
Chicago Style (17th ed.) CitationSchrank, David L., Shawn Turner, and Timothy J. Lomax. Estimates of Urban Roadway Congestion, 1990. College Station, Tex. : [Springfield, Va.]: Texas Transportation Institute, Texas A&M University System ; [Available through the National Technical Information Service], 1993.
MLA (9th ed.) CitationSchrank, David L., et al. Estimates of Urban Roadway Congestion, 1990. Texas Transportation Institute, Texas A&M University System ; [Available through the National Technical Information Service], 1993.
Warning: These citations may not always be 100% accurate.