National Cooperative Highway Research Progra, National Research Council (U.S.). Transportation Research Boar, American Association of State Highway and Transportation Official, & aStutts, J. Guidance for implementation of the AASHTO Strategic Highway Safety Plan. Transportation Research Board.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Cooperative Highway Research Progra, National Research Council (U.S.). Transportation Research Boar, American Association of State Highway and Transportation Official, और Jane aStutts. Guidance for Implementation of the AASHTO Strategic Highway Safety Plan. Washington, D.C: Transportation Research Board.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Cooperative Highway Research Progra, et al. Guidance for Implementation of the AASHTO Strategic Highway Safety Plan. Transportation Research Board.