National Research Council (U.S.). Transportation Research Board. (1998). Energy, air quality and fuels, 1998. National Academy Press.
Cita Chicago (17th ed.)National Research Council (U.S.). Transportation Research Board. Energy, Air Quality and Fuels, 1998. Washington, D.C: National Academy Press, 1998.
Cita MLA (9th ed.)National Research Council (U.S.). Transportation Research Board. Energy, Air Quality and Fuels, 1998. National Academy Press, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.