Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Pehrson, L., Oxelheim, L., & Gustavsson, S. (2009). How Unified Is the European Union?: European Integration Between Visions and Popular Legitimacy. Springer Berlin Heidelberg.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Lars Pehrson, Lars Oxelheim, και Sverker Gustavsson. How Unified Is the European Union?: European Integration Between Visions and Popular Legitimacy. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. How Unified Is the European Union?: European Integration Between Visions and Popular Legitimacy. Springer Berlin Heidelberg, 2009.