APA (7th ed.) Citation

Wells, G. R. (1979). Traffic engineering: An introduction (2d ed.). C. Griffin.

Chicago Style (17th ed.) Citation

Wells, Gordon Ronald. Traffic Engineering: An Introduction. 2d ed. London: C. Griffin, 1979.

MLA (9th ed.) Citation

Wells, Gordon Ronald. Traffic Engineering: An Introduction. 2d ed. C. Griffin, 1979.