International Energy Agency & ProQuest (Firm). (2006). Slovak Republic: Energy policy review 2005. OECD/IEA.
Čikaški stil citiranja (17. izdanje)International Energy Agency i ProQuest (Firm). Slovak Republic: Energy Policy Review 2005. Paris: OECD/IEA, 2006.
MLA način citiranja (9. izdanje)International Energy Agency i ProQuest (Firm). Slovak Republic: Energy Policy Review 2005. OECD/IEA, 2006.
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