Seminar on Traffic Engineering Practice Melbourne, Vic., University of Melbourne. Dept. of Civil Engineering, Clark, N., & Pretty, R. L. (1967). Traffic engineering practice. Dept. of Civil Engineering, University of Melbourne.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Seminar on Traffic Engineering Practice Melbourne, Vic., University of Melbourne. Dept. of Civil Engineering, Nicholas Clark, و R. L. Pretty. Traffic Engineering Practice. [Melbourne: Dept. of Civil Engineering, University of Melbourne, 1967.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Seminar on Traffic Engineering Practice Melbourne, Vic., et al. Traffic Engineering Practice. Dept. of Civil Engineering, University of Melbourne, 1967.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.