Cita APA (7th ed.)
Organisation for Economic Co-operation and Development, International Energy Agency, & ProQuest (Firm). (2008). World energy outlook 2008. OECD/IEA.
Cita Chicago (17th ed.)
Organisation for Economic Co-operation and Development, International Energy Agency, i ProQuest (Firm). World Energy Outlook 2008. Paris: OECD/IEA, 2008.
Cita MLA (9th ed.)
Organisation for Economic Co-operation and Development, et al. World Energy Outlook 2008. OECD/IEA, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.