International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2008). IEA energy policies review: The European Union - 2008. OECD/IEA.
Cita Chicago (17th ed.)International Energy Agency, Organisation for Economic Co-operation and Development, i ProQuest (Firm). IEA Energy Policies Review: The European Union - 2008. Paris: OECD/IEA, 2008.
Cita MLA (9th ed.)International Energy Agency, et al. IEA Energy Policies Review: The European Union - 2008. OECD/IEA, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.