APA-Zitierstil (7. Ausg.)

European Union (Brussels, Belgium). (2018). Energy, transport and environment indicators: 2018 edition. Publications Office of the European Union.

Chicago-Zitierstil (17. Ausg.)

European Union (Brussels, Belgium). Energy, Transport and Environment Indicators: 2018 Edition. Luxembourg: Publications Office of the European Union, 2018.

MLA-Zitierstil (9. Ausg.)

European Union (Brussels, Belgium). Energy, Transport and Environment Indicators: 2018 Edition. Publications Office of the European Union, 2018.