Cita APA

Jacobs, G. D., Sayer, I. A., & Downing, A. J. (1981). A preliminary study of road-user behaviour in developing countries. Transport and Road Research Laboratory.

Citación estilo Chicago

Jacobs, G. D., I. A. Sayer, and A. J. Downing. A Preliminary Study of Road-user Behaviour in Developing Countries. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.

Cita MLA

Jacobs, G. D., et al. A Preliminary Study of Road-user Behaviour in Developing Countries. Transport and Road Research Laboratory, 1981.