APA-referens (7:e uppl.)
Koops, J. A., Style, H., & Koloriet, L. (2011). The European Union as an integrative power: Assessing the EU's 'effective multilateralism' with NATO and the United Nations. VUBPress.
Chicago-referens (17:e uppl.)
Koops, Joachim Alexander, Hulshout Style, och Leefdaal Koloriet. The European Union as an Integrative Power: Assessing the EU's 'Effective Multilateralism' with NATO and the United Nations. Brussels, Belgium: VUBPress, 2011.
MLA-referens (9:e uppl.)
Koops, Joachim Alexander, et al. The European Union as an Integrative Power: Assessing the EU's 'Effective Multilateralism' with NATO and the United Nations. VUBPress, 2011.
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