National Research Council (U.S.). Transportation Research Board. Annual meeting. (2001). Hydrology, hydraulics, and water quality; Roadside safety features. National Academy Press.
Cita Chicago (17th ed.)National Research Council (U.S.). Transportation Research Board. Annual meeting. Hydrology, Hydraulics, and Water Quality; Roadside Safety Features. Washington, D.C: National Academy Press, 2001.
Cita MLA (9th ed.)National Research Council (U.S.). Transportation Research Board. Annual meeting. Hydrology, Hydraulics, and Water Quality; Roadside Safety Features. National Academy Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.