Ziller, J., & Jeffery, C. (2006). The Committee of the Regions and the implementation and monitoring of the principles of subsidiarity and proportionality in the light of the Constitution for Europe ([1st ed.].). Office for Official Publications of the European Communities.
Chicago Style (17th ed.) CitationZiller, Jacques, and Charlie Jeffery. The Committee of the Regions and the Implementation and Monitoring of the Principles of Subsidiarity and Proportionality in the Light of the Constitution for Europe. [1st ed.]. Luxembourg: Office for Official Publications of the European Communities, 2006.
MLA (9th ed.) CitationZiller, Jacques, and Charlie Jeffery. The Committee of the Regions and the Implementation and Monitoring of the Principles of Subsidiarity and Proportionality in the Light of the Constitution for Europe. [1st ed.]. Office for Official Publications of the European Communities, 2006.