Dyfyniad APA
(2003). The PISA 2003 assessment framework: Mathematics, reading, science, and problem solving knowledge and skills. OECD.
Dyfyniad Arddull Chicago
The PISA 2003 Assessment Framework: Mathematics, Reading, Science, and Problem Solving Knowledge and Skills. [Place of publication not identified]: OECD, 2003.
Dyfyniad MLA
The PISA 2003 Assessment Framework: Mathematics, Reading, Science, and Problem Solving Knowledge and Skills. OECD, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.