International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2009). Implementing energy efficiency policies: Are IEA member countries on track? OECD/IEA.
Cita Chicago (17th ed.)International Energy Agency, Organisation for Economic Co-operation and Development, i ProQuest (Firm). Implementing Energy Efficiency Policies: Are IEA Member Countries on Track? Paris: OECD/IEA, 2009.
Cita MLA (9th ed.)International Energy Agency, et al. Implementing Energy Efficiency Policies: Are IEA Member Countries on Track? OECD/IEA, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.