Marhold, H. (2017). Europe under stress: Internal and external challenges for the EU and its member states (2nd, enlarged edition.). Nomos.
Chicago-Zitierstil (17. Ausg.)Marhold, Hartmut. Europe Under Stress: Internal and External Challenges for the EU and Its Member States. 2nd, enlarged edition. Baden-Baden: Nomos, 2017.
MLA-Zitierstil (9. Ausg.)Marhold, Hartmut. Europe Under Stress: Internal and External Challenges for the EU and Its Member States. 2nd, enlarged edition. Nomos, 2017.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.