Measuring progress towards a more sustainable Europe: proposed indicators for sustainable development : data 1980-99 - European Commission (Λουξεμβούργο : Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2001)
Keywords: Sustainable development -- European Union countries; Sustainable development -- European Union countries -- Statistics; Environmental indicators -- European Union countries