OECD. (1967). Future directions for research in urban transportation. Paris: Organisation for Economic Co-operation and Development. Directorate for Scientific Affairs.
استشهاد بنمط شيكاغوOECD. Future Directions for Research in Urban Transportation. Paris: Organisation for Economic Co-operation and Development. Directorate for Scientific Affairs, 1967.
MLA استشهادOECD. Future Directions for Research in Urban Transportation. Paris: Organisation for Economic Co-operation and Development. Directorate for Scientific Affairs, 1967.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.