Παραπομπή APA
European Commission : Directorate-General for Research. (2010). World and European Sustainable cities: Insights from EU research. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Commission : Directorate-General for Research. World and European Sustainable Cities: Insights From EU Research. Luxembourg: Office for Official Publications of the European Communities, 2010.
Παραπομπή MLAEuropean Commission : Directorate-General for Research. World and European Sustainable Cities: Insights From EU Research. Luxembourg: Office for Official Publications of the European Communities, 2010.
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