Publications Office of the European Union. (2018). The EU in the world: Statistical books. Publication Office of the European Union.
Chicago-Zitierstil (17. Ausg.)Publications Office of the European Union. The EU in the World: Statistical Books. Luxembourg: Publication Office of the European Union, 2018.
MLA-Zitierstil (9. Ausg.)Publications Office of the European Union. The EU in the World: Statistical Books. Publication Office of the European Union, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.