National Research Council (U.S.). Transportation Research Board. Meeting. (1999). Roadside safety and other general design issues. National Academy Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Transportation Research Board. Meeting. Roadside Safety and Other General Design Issues. Washington, D.C: National Academy Press, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Transportation Research Board. Meeting. Roadside Safety and Other General Design Issues. National Academy Press, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.