National Research Council (U.S.). Transportation Research Board. (1996). Work zone safety and pavement markings and materials. National Academy Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Research Council (U.S.). Transportation Research Board. Work Zone Safety and Pavement Markings and Materials. Washington, DC: National Academy Press, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Research Council (U.S.). Transportation Research Board. Work Zone Safety and Pavement Markings and Materials. National Academy Press, 1996.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.