National Research Council (U.S.). Highway Research Board. Committee on Bridges. (1952). Distribution of load stresses in highway bridges: Presented at the thirty-first annual meeting, January 1952. Highway Research Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Highway Research Board. Committee on Bridges. Distribution of Load Stresses in Highway Bridges: Presented at the Thirty-first Annual Meeting, January 1952. Washington, D.C: Highway Research Board, 1952.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Highway Research Board. Committee on Bridges. Distribution of Load Stresses in Highway Bridges: Presented at the Thirty-first Annual Meeting, January 1952. Highway Research Board, 1952.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.