Dyfyniad APA

Organisation for Economic Co-operation and Development & ProQuest (Firm). (2006). Milan, Italy. OECD.

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development and ProQuest (Firm). Milan, Italy. Paris: OECD, 2006.

Dyfyniad MLA

Organisation for Economic Co-operation and Development and ProQuest (Firm). Milan, Italy. OECD, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.