American Association of State Highway and Transportation Officials. (2015). LRFD specifications for structural supports for highway signs, luminaires, and traffic signals (1. edition.). Washington, D.C.: AASHTO.
Chicago Style CitationAmerican Association of State Highway and Transportation Officials. LRFD Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals. 1. edition. Washington, D.C.: AASHTO, 2015.
MLA CitationAmerican Association of State Highway and Transportation Officials. LRFD Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals. 1. edition. Washington, D.C.: AASHTO, 2015.
Warning: These citations may not always be 100% accurate.