Dyfyniad APA

Organisation for Economic Co-operation and Development, Programme for International Student Assessment, & ProQuest (Firm). (2009). PISA 2006 technical report. OECD.

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development, Programme for International Student Assessment, and ProQuest (Firm). PISA 2006 Technical Report. Paris: OECD, 2009.

Dyfyniad MLA

Organisation for Economic Co-operation and Development, et al. PISA 2006 Technical Report. OECD, 2009.

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