Παραπομπή APA

Wright, P. H., Ashford, N. J., Stammer, R. J., Jr., Ashford, N., Stammer, R. J., & Stammer, R. (1998). Transportation engineering: Planning and design (4th ed.). New York, NY.: John Wiley & Sons.

Παραπομπή Chicago Style

Wright, Paul H., Norman J. Ashford, Robert J. Stammer, Jr, Norman Ashford, Robert J. Stammer, and Robert Stammer. Transportation Engineering: Planning and Design. 4th ed. New York, NY.: John Wiley & Sons, 1998.

Παραπομπή MLA

Wright, Paul H., et al. Transportation Engineering: Planning and Design. 4th ed. New York, NY.: John Wiley & Sons, 1998.

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