International Energy Agency. (2012). World energy outlook 2012. International Energy Agency, OCDE.
Cita Chicago Style (17a ed.)International Energy Agency. World Energy Outlook 2012. Paris: International Energy Agency, OCDE, 2012.
Cita MLA (8a ed.)International Energy Agency. World Energy Outlook 2012. International Energy Agency, OCDE, 2012.
Precaución: Estas citas no son 100% exactas.