Cita APA

Wigan, M. R., & Walmsley, D. A. (1972). A modal split model for long distance travel. Transport and Road Research Laboratory.

Citación estilo Chicago

Wigan, M. Ramsay, and D. A. Walmsley. A Modal Split Model for Long Distance Travel. Crowthorne, Berkshire, [Eng.]: Transport and Road Research Laboratory, 1972.

Cita MLA

Wigan, M. Ramsay, and D. A. Walmsley. A Modal Split Model for Long Distance Travel. Transport and Road Research Laboratory, 1972.