Organisation for Economic Co-operation and Development & ProQuest (Firm). (2011). United Kingdom 2011. OECD.
Čikaški stil citiranja (17. izdanje)Organisation for Economic Co-operation and Development i ProQuest (Firm). United Kingdom 2011. [Paris]: OECD, 2011.
MLA način citiranja (9. izdanje)Organisation for Economic Co-operation and Development i ProQuest (Firm). United Kingdom 2011. OECD, 2011.
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