Organisation for Economic Co-operation and Development & ProQuest (Firm). (2007). Examens territoriaux de l'OCDE. OCDE.
Dyfyniad Arddull ChicagoOrganisation for Economic Co-operation and Development and ProQuest (Firm). Examens Territoriaux De L'OCDE. Paris: OCDE, 2007.
Dyfyniad MLAOrganisation for Economic Co-operation and Development and ProQuest (Firm). Examens Territoriaux De L'OCDE. OCDE, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.