National Research Council (U.S.). Highway Research Board & Engineering Foundation (U.S.). (1974). Issues in public transportation: Proceedings of a conference. National Research Council,Transportation Research Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Highway Research Board و Engineering Foundation (U.S.). Issues in Public Transportation: Proceedings of a Conference. Washington, D.C: National Research Council,Transportation Research Board, 1974.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Highway Research Board و Engineering Foundation (U.S.). Issues in Public Transportation: Proceedings of a Conference. National Research Council,Transportation Research Board, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.