Savage, C. I. (1959). An economic history of transport. Hutchinson.
Cita Chicago Style (17a ed.)Savage, Christopher I. An Economic History of Transport. London: Hutchinson, 1959.
Cita MLA (9a ed.)Savage, Christopher I. An Economic History of Transport. Hutchinson, 1959.
Precaución: Estas citas no son 100% exactas.