European Commission. (2001). European report on the quality of school education: Sixteen quality indicators : report based on the work of the Working Committee on Quality Indicators. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Commission. European Report On the Quality of School Education: Sixteen Quality Indicators : Report Based On the Work of the Working Committee On Quality Indicators. Luxembourg: Office for Official Publications of the European Communities, 2001.
Παραπομπή MLAEuropean Commission. European Report On the Quality of School Education: Sixteen Quality Indicators : Report Based On the Work of the Working Committee On Quality Indicators. Luxembourg: Office for Official Publications of the European Communities, 2001.