Dyfyniad APA
European Conference of Ministers of Transport. (2003). Reforming transport taxes. ECMT.
Dyfyniad Arddull Chicago
European Conference of Ministers of Transport. Reforming Transport Taxes. Paris Cedex, France: ECMT, 2003.
Dyfyniad MLA
European Conference of Ministers of Transport. Reforming Transport Taxes. ECMT, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.