Commission of the European Communities. (2008). Communication from the Commission to the Council and the European Parliament: Progress report on the sustainable development strategy 2007. Office for Official Publications of the European Communities.
Παραπομπή σε μορφή Chicago (17η εκδ.)Commission of the European Communities. Communication from the Commission to the Council and the European Parliament: Progress Report on the Sustainable Development Strategy 2007. Luxembourg: Office for Official Publications of the European Communities, 2008.
Παραπομπή σε μορφή MLA (8th εκδ.)Commission of the European Communities. Communication from the Commission to the Council and the European Parliament: Progress Report on the Sustainable Development Strategy 2007. Office for Official Publications of the European Communities, 2008.
