bamford, G. (1980). Geography of transport. Controller of pub.
Dyfyniad Arddull Chicagobamford, G. Geography of Transport. NULL: Controller of pub, 1980.
Dyfyniad MLAbamford, G. Geography of Transport. Controller of pub, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.