European Commission. (2010). Making our cities attractive and sustainable: Hoe the EU contributes to improving the urban environment. Publications Office of the European Union.
Παραπομπή σε μορφή Chicago (17η εκδ.)European Commission. Making Our Cities Attractive and Sustainable: Hoe the EU Contributes to Improving the Urban Environment. Luxembourg: Publications Office of the European Union, 2010.
Παραπομπή σε μορφή MLA (8th εκδ.)European Commission. Making Our Cities Attractive and Sustainable: Hoe the EU Contributes to Improving the Urban Environment. Publications Office of the European Union, 2010.
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