APA-referens (7:e uppl.)

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-referens (17:e uppl.)

National Research Council (U.S.). Transportation Research Board och National Cooperative Highway Research Program. Pavement Marking Assessment System (PAMAS). Washington, D.C: Transportation Research Board, National Research Council, 1998.

MLA-referens (9:e uppl.)

National Research Council (U.S.). Transportation Research Board och National Cooperative Highway Research Program. Pavement Marking Assessment System (PAMAS). Transportation Research Board, National Research Council, 1998.