APA način citiranja (7. izdanje)
Organisation for Economic Co-operation and Development & ProQuest (Firm). (2011). Estonie 2011. OCDE.
Čikaški stil citiranja (17. izdanje)
Organisation for Economic Co-operation and Development i ProQuest (Firm). Estonie 2011. [Paris]: OCDE, 2011.
MLA način citiranja (9. izdanje)
Organisation for Economic Co-operation and Development i ProQuest (Firm). Estonie 2011. OCDE, 2011.
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