National Cooperative Highway Research Program & National Research Council (U.S.). Transportation Research Board. (1976). Breakaway cable terminals for guardrails and median barriers. Transportation Research Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Cooperative Highway Research Program و National Research Council (U.S.). Transportation Research Board. Breakaway Cable Terminals for Guardrails and Median Barriers. Washington, D.C: Transportation Research Board, 1976.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Cooperative Highway Research Program و National Research Council (U.S.). Transportation Research Board. Breakaway Cable Terminals for Guardrails and Median Barriers. Transportation Research Board, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.