Wright, P., Ashford, N. Transportation on engineering. Planning and design. New York: John Wiley & Sons, 1989 776 p. : ill. 0-471-8874-8.
Wright, P., Ashford, N. Transportation on engineering. Planning and design. New York: John Wiley & Sons, 1989 776 p. : ill. 0-471-8874-8.
Wright, P., Ashford, N. (1989) Transportation on engineering. Planning and design, New York: John Wiley & Sons 776 p. : ill. 0-471-8874-8.
Wright, P., & Ashford, N. (1989). Transportation on engineering. Planning and design. Monogr.. New York: John Wiley & Sons, 776 p. : ill.
Wright P, Ashford N. Transportation on engineering. Planning and design: Monogr.. New York: John Wiley & Sons; 1989. p. 776 p. : ill. ISBN: 0-471-8874-8.