National Research Council (U.S.). Transportation Research Board. (1993). Nonmotorized transportation research and issues: Operations and safety; planning and administration. National Academy Press.
芝加哥风格引文National Research Council (U.S.). Transportation Research Board. Nonmotorized Transportation Research and Issues: Operations and Safety; Planning and Administration. Washington, D.C: National Academy Press, 1993.
MLA引文National Research Council (U.S.). Transportation Research Board. Nonmotorized Transportation Research and Issues: Operations and Safety; Planning and Administration. National Academy Press, 1993.
警告：这些引文格式不一定是100％准确.