توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

National Research Council (U.S.). Highway Research Board. (1973). Traffic signals: 5 reports ; prepared for the 52nd annual meeting. Highway Research Board, National Research Council.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

National Research Council (U.S.). Highway Research Board. Traffic Signals: 5 Reports ; Prepared for the 52nd Annual Meeting. Washington, D.C: Highway Research Board, National Research Council, 1973.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

National Research Council (U.S.). Highway Research Board. Traffic Signals: 5 Reports ; Prepared for the 52nd Annual Meeting. Highway Research Board, National Research Council, 1973.