Cita APA (7th ed.)
International Energy Agency. (2017). World energy investment 2017. OECD.
Cita Chicago (17th ed.)
International Energy Agency. World Energy Investment 2017. Paris, [France]: OECD, 2017.
Cita MLA (9th ed.)
International Energy Agency. World Energy Investment 2017. OECD, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.