International Energy Agency. (2009). Implementing energy efficiency policies: 2009 : are IEA member countries on track? OECD/IEA.
Cita Chicago Style (17a ed.)International Energy Agency. Implementing Energy Efficiency Policies: 2009 : Are IEA Member Countries on Track? Paris: OECD/IEA, 2009.
Cita MLA (9a ed.)International Energy Agency. Implementing Energy Efficiency Policies: 2009 : Are IEA Member Countries on Track? OECD/IEA, 2009.
Precaución: Estas citas no son 100% exactas.