Kühnhardt, L. (2008). European Union - The Second Founding: The Changing Rationale of European Integration. Nomos Verlagsgesellschaft mbH & Co. KG.
Chicago-referens (17:e uppl.)Kühnhardt, Ludger. European Union - The Second Founding: The Changing Rationale of European Integration. Baden-Baden: Nomos Verlagsgesellschaft mbH & Co. KG, 2008.
MLA-referens (8:e uppl.)Kühnhardt, Ludger. European Union - The Second Founding: The Changing Rationale of European Integration. Nomos Verlagsgesellschaft mbH & Co. KG, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.