(1992). Pavement surface properties: Roughness, rutting, skid resistance, and surface distress. Transportation Research Board, National Research Council.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Pavement Surface Properties: Roughness, Rutting, Skid Resistance, and Surface Distress. Washington, D.C: Transportation Research Board, National Research Council, 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Pavement Surface Properties: Roughness, Rutting, Skid Resistance, and Surface Distress. Transportation Research Board, National Research Council, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.