International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2008). IEA energy policies review: The European Union - 2008. OECD/IEA.
Chicago-referens (17:e uppl.)International Energy Agency, Organisation for Economic Co-operation and Development, och ProQuest (Firm). IEA Energy Policies Review: The European Union - 2008. Paris: OECD/IEA, 2008.
MLA-referens (9:e uppl.)International Energy Agency, et al. IEA Energy Policies Review: The European Union - 2008. OECD/IEA, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.