Dyfyniad APA

Organisation for Economic Co-operation and Development & ProQuest (Firm). (2011). Estonia 2011. OECD.

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development and ProQuest (Firm). Estonia 2011. [Paris]: OECD, 2011.

Dyfyniad MLA

Organisation for Economic Co-operation and Development and ProQuest (Firm). Estonia 2011. OECD, 2011.

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