APA
American Association of State Highway and Transportation Officials A., The Associated General Contractors of America A. & American Road & Transportation Builders Association A. (1995). A guide to standardized highway barrier hardware. Washington DC: American Association of State Highway and Transportation Officials, AASHTO.
Chicago
American Association of State Highway and Transportation Officials AASHTO, The Associated General Contractors of America AGC and American Road & Transportation Builders Association ARTBA. 1995. A guide to standardized highway barrier hardware. Washington DC: American Association of State Highway and Transportation Officials, AASHTO.
Harvard
American Association of State Highway and Transportation Officials A., The Associated General Contractors of America A. and American Road & Transportation Builders Association A. (1995). A guide to standardized highway barrier hardware. Washington DC: American Association of State Highway and Transportation Officials, AASHTO.
MLA
American Association of State Highway and Transportation Officials AASHTO, The Associated General Contractors of America AGC and American Road & Transportation Builders Association ARTBA. A guide to standardized highway barrier hardware. Washington DC: American Association of State Highway and Transportation Officials, AASHTO. 1995.