Texas. Department of Transportation. Office of Research and Technology Transfer, Texas Transportation Institute, & Ullman, G. L. (1996). Visibility, spacing and operation of freeway lane control signals. Texas Transportation Institute, Texas A&M University System ; [Available through the National Technical Information Service].
Chicago Style (17th ed.) CitationTexas. Department of Transportation. Office of Research and Technology Transfer, Texas Transportation Institute, and Gerald L. Ullman. Visibility, Spacing and Operation of Freeway Lane Control Signals. College Station, Tex. : [Springfield, Va.]: Texas Transportation Institute, Texas A&M University System ; [Available through the National Technical Information Service], 1996.
MLA (9th ed.) CitationTexas. Department of Transportation. Office of Research and Technology Transfer, et al. Visibility, Spacing and Operation of Freeway Lane Control Signals. Texas Transportation Institute, Texas A&M University System ; [Available through the National Technical Information Service], 1996.