Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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