National Cooperative Highway Research Program & National Research Council (U.S.). Transportation Research Board. (1979). Continuing project to synthesize information on highway problems. Transportation Research Board.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Cooperative Highway Research Program और National Research Council (U.S.). Transportation Research Board. Continuing Project to Synthesize Information on Highway Problems. Washington, D.C: Transportation Research Board, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Cooperative Highway Research Program और National Research Council (U.S.). Transportation Research Board. Continuing Project to Synthesize Information on Highway Problems. Transportation Research Board, 1979.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.