European Commission. (2004). Social protection in the member states of the European Union, of the european economic area and in Switzerland: Situation on 1 January 2003. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Commission. Social Protection in the Member States of the European Union, of the European Economic Area and in Switzerland: Situation On 1 January 2003. Luxembourg: Office for Official Publications of the European Communities, 2004.
Παραπομπή MLAEuropean Commission. Social Protection in the Member States of the European Union, of the European Economic Area and in Switzerland: Situation On 1 January 2003. Luxembourg: Office for Official Publications of the European Communities, 2004.