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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Transportation Research Board و National Cooperative Highway Research Program. Pavement Marking Assessment System (PAMAS). Washington, D.C: Transportation Research Board, National Research Council, 1998.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Transportation Research Board و National Cooperative Highway Research Program. Pavement Marking Assessment System (PAMAS). Transportation Research Board, National Research Council, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.