Hirsch, T. J., Hayes, G. G., & Ivey, D. L. (1970). The Modular Crash Cushion. Texas Transportation Institute, Texas A & M Research Foundation.
Chicago Style (17th ed.) CitationHirsch, T. J., Gordon G. Hayes, and Don L. Ivey. The Modular Crash Cushion. [College Station, Tex.]: Texas Transportation Institute, Texas A & M Research Foundation, 1970.
MLA (9th ed.) CitationHirsch, T. J., et al. The Modular Crash Cushion. Texas Transportation Institute, Texas A & M Research Foundation, 1970.
Warning: These citations may not always be 100% accurate.