International Energy Agency. (2016). Energy Policies of IEA Countries: Portugal 2016. OECD Publishing. https://doi.org/10.1787/9789264243637-en
Chicago-Zitierstil (17. Ausg.)International Energy Agency. Energy Policies of IEA Countries: Portugal 2016. Paris: OECD Publishing, 2016. https://doi.org/10.1787/9789264243637-en.
MLA-Zitierstil (9. Ausg.)International Energy Agency. Energy Policies of IEA Countries: Portugal 2016. OECD Publishing, 2016. https://doi.org/10.1787/9789264243637-en.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.