European Conference of Ministers of Transport & ProQuest (Firm). (2007). Trends in the transport sector, 1970-2005. ECMT.
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Dyfyniad Arddull Chicago
European Conference of Ministers of Transport and ProQuest (Firm). Trends in the Transport Sector, 1970-2005. Paris: ECMT, 2007.
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Dyfyniad MLA
European Conference of Ministers of Transport and ProQuest (Firm). Trends in the Transport Sector, 1970-2005. ECMT, 2007.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.