Dyfyniad APA

(2003). Pisa 2003 technical report: Programme for international student assessment. [kxd[: OECD.

Dyfyniad Arddull Chicago

Pisa 2003 Technical Report: Programme for International Student Assessment. [kxd[: OECD, 2003.

Dyfyniad MLA

Pisa 2003 Technical Report: Programme for International Student Assessment. [kxd[: OECD, 2003.

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