APA (7th ed.) Citation
ORGANISATION FOR ECONOMIC CO-OPERATION AND DEVELOPMENT. (2011). PISA 2009 RESULTS. OCDE.
Chicago Style (17th ed.) Citation
ORGANISATION FOR ECONOMIC CO-OPERATION AND DEVELOPMENT. PISA 2009 RESULTS. PARIS: OCDE, 2011.
MLA (9th ed.) Citation
ORGANISATION FOR ECONOMIC CO-OPERATION AND DEVELOPMENT. PISA 2009 RESULTS. OCDE, 2011.
Warning: These citations may not always be 100% accurate.