European Commission (Brussels, Belgium). (2020). The EU in the world: Statistical books. Publications Office of the European Union.
Chicago-Zitierstil (17. Ausg.)European Commission (Brussels, Belgium). The EU in the World: Statistical Books. Luxembourg: Publications Office of the European Union, 2020.
MLA-Zitierstil (9. Ausg.)European Commission (Brussels, Belgium). The EU in the World: Statistical Books. Publications Office of the European Union, 2020.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.