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.
Chicago-viite (17. p.)National Research Council (U.S.). Transportation Research Board ja National Cooperative Highway Research Program. Pavement Marking Assessment System (PAMAS). Washington, D.C: Transportation Research Board, National Research Council, 1998.
MLA-viite (9. p.)National Research Council (U.S.). Transportation Research Board ja National Cooperative Highway Research Program. Pavement Marking Assessment System (PAMAS). Transportation Research Board, National Research Council, 1998.
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