National Research Council (U.S.). Transportation Research Board. (1992). Truck research profiles: 1991 update. Transportation Research Board, National Research Council.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Transportation Research Board. Truck Research Profiles: 1991 Update. Washington, D.C: Transportation Research Board, National Research Council, 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Transportation Research Board. Truck Research Profiles: 1991 Update. Transportation Research Board, National Research Council, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.