North Yorkshire Working Group & Cooper, B. R. (1980). Rural transport experiments: Hackforth and district car sharing service : a report. Transport and Road Research Laboratory.
Dyfyniad Arddull ChicagoNorth Yorkshire Working Group and B. R. Cooper. Rural Transport Experiments: Hackforth and District Car Sharing Service : A Report. Crowthorne, Berk: Transport and Road Research Laboratory, 1980.
Dyfyniad MLANorth Yorkshire Working Group and B. R. Cooper. Rural Transport Experiments: Hackforth and District Car Sharing Service : A Report. Transport and Road Research Laboratory, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.