European Parliament. (2009). The European Parliament's political groups / European Parliament. Office for Official Publications of the European Communities.
Chicago Style (17th ed.) CitationEuropean Parliament. The European Parliament's Political Groups / European Parliament. Luxembourg: Office for Official Publications of the European Communities, 2009.
MLA (9th ed.) CitationEuropean Parliament. The European Parliament's Political Groups / European Parliament. Office for Official Publications of the European Communities, 2009.
Warning: These citations may not always be 100% accurate.