National Research Council (U.S.). Transportation Research Board & National Cooperative Highway Research Program. (1998). Pavement marking assessment system (PAMAS). Transportation Research Board, National Research Council.
Cita Chicago (17th ed.)National Research Council (U.S.). Transportation Research Board i National Cooperative Highway Research Program. Pavement Marking Assessment System (PAMAS). Washington, D.C: Transportation Research Board, National Research Council, 1998.
Cita MLA (9th ed.)National Research Council (U.S.). Transportation Research Board i National Cooperative Highway Research Program. Pavement Marking Assessment System (PAMAS). Transportation Research Board, National Research Council, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.