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Dyfyniad Arddull ChicagoGlover, M. H. Results from the Hull Axle Weight Survey (1980). Crowthorne, Berkshire: Transport and Road Research Laboratory, 1983.
Dyfyniad MLAGlover, M. H. Results from the Hull Axle Weight Survey (1980). Transport and Road Research Laboratory, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.