APA (7th ed.) Citation

Taylor, N. B., & Jeffery, D. J. (1981). Determining optimum routes from maps. Transport and Road Research Laboratory.

Chicago Style (17th ed.) Citation

Taylor, N. B., and D. J. Jeffery. Determining Optimum Routes from Maps. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.

MLA (9th ed.) Citation

Taylor, N. B., and D. J. Jeffery. Determining Optimum Routes from Maps. Transport and Road Research Laboratory, 1981.