Cita APA (7a ed.)

Lang, A., & Soberman, R. M. (1969). Urban rail transit: Its economics and technology ([3rd printing].). MIT Press.

Cita Chicago Style (17a ed.)

Lang, A.Scheffer, y Richard M. Soberman. Urban Rail Transit: Its Economics and Technology. [3rd printing]. Cambridge, Mass.: MIT Press, 1969.

Cita MLA (9a ed.)

Lang, A.Scheffer, y Richard M. Soberman. Urban Rail Transit: Its Economics and Technology. [3rd printing]. MIT Press, 1969.