Taylor, G. R. (1951). The transportation revolution, 1815-1860. Holt, Rinehart and Winston.
Dyfyniad Arddull ChicagoTaylor, George Rogers. The Transportation Revolution, 1815-1860. New York: Holt, Rinehart and Winston, 1951.
Dyfyniad MLATaylor, George Rogers. The Transportation Revolution, 1815-1860. Holt, Rinehart and Winston, 1951.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.