European Commission (Brussels, Belgium). (2020). Annual report 2019: The European Commission`s science and knowledge service. Publications Office of the European Union.
Chicago-Zitierstil (17. Ausg.)European Commission (Brussels, Belgium). Annual Report 2019: The European Commission`s Science and Knowledge Service. Luxenbourg: Publications Office of the European Union, 2020.
MLA-Zitierstil (9. Ausg.)European Commission (Brussels, Belgium). Annual Report 2019: The European Commission`s Science and Knowledge Service. Publications Office of the European Union, 2020.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.