International Energy Agency. (2019). End-use prices: Wholesale and retail indices of energy prices (Edition 2019). OECD Publishing. https://doi.org/10.1787/65658630-en
Chicago-Zitierstil (17. Ausg.)International Energy Agency. End-use Prices: Wholesale and Retail Indices of Energy Prices (Edition 2019). Paris: OECD Publishing, 2019. https://doi.org/10.1787/65658630-en.
MLA-Zitierstil (9. Ausg.)International Energy Agency. End-use Prices: Wholesale and Retail Indices of Energy Prices (Edition 2019). OECD Publishing, 2019. https://doi.org/10.1787/65658630-en.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.