توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Marshall, R. J. (1968). A traffic simulation package using the opportunity model. New York State Department of Transportation, Subdivision of Transportation Planning and Programming.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Marshall, Ralph J. A Traffic Simulation Package Using the Opportunity Model. Albany, N.Y.: New York State Department of Transportation, Subdivision of Transportation Planning and Programming, 1968.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Marshall, Ralph J. A Traffic Simulation Package Using the Opportunity Model. New York State Department of Transportation, Subdivision of Transportation Planning and Programming, 1968.