National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board, American Association of State Highway and Transportation Officials, & Bahar, G. B. (2004). Safety evaluation of permanent raised pavement markers. Transportation Research Board.
Citación estilo ChicagoNational Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board, American Association of State Highway and Transportation Officials, and Geni Brafman Bahar. Safety Evaluation of Permanent Raised Pavement Markers. Washington, D.C: Transportation Research Board, 2004.
Cita MLANational Cooperative Highway Research Program, et al. Safety Evaluation of Permanent Raised Pavement Markers. Transportation Research Board, 2004.