American Association of State Highway and Transportation Officials. Task Force on Traffic Barrier Systems. (1977). Guide for selecting, locating, and designing traffic barriers. AASHTO.
Chicago Style (17th ed.) CitationAmerican Association of State Highway and Transportation Officials. Task Force on Traffic Barrier Systems. Guide for Selecting, Locating, and Designing Traffic Barriers. [Washington, D.C.]: AASHTO, 1977.
MLA (9th ed.) CitationAmerican Association of State Highway and Transportation Officials. Task Force on Traffic Barrier Systems. Guide for Selecting, Locating, and Designing Traffic Barriers. AASHTO, 1977.
Warning: These citations may not always be 100% accurate.