Progress towards halting the loss of biodiversity by 2010 - European Environment Agency (Λουξεμβούργο : Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2006)
Keywords: Biodiversity -- European Union countries; Ecology -- European Union countries; Sustainable development -- European Union countries