Organisation for Economic Co-operation and Development. (2017). Ex-post assessment of transport investments and policy interventions. OECD.
Dyfyniad Arddull ChicagoOrganisation for Economic Co-operation and Development. Ex-post Assessment of Transport Investments and Policy Interventions. Paris: OECD, 2017.
Dyfyniad MLAOrganisation for Economic Co-operation and Development. Ex-post Assessment of Transport Investments and Policy Interventions. OECD, 2017.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.