European Commission : Directorate-General for Economic and Financial Affairs., European Commission. Directorate-General for Taxation and Customs Union., Office for Official Publications of the European Communities., & European Commission. (2011). The 2012 ageing report: Underlying assumptions and projection methodologies. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων.
Παραπομπή Chicago StyleEuropean Commission : Directorate-General for Economic and Financial Affairs., European Commission. Directorate-General for Taxation and Customs Union, Office for Official Publications of the European Communities, and European Commission. The 2012 Ageing Report: Underlying Assumptions and Projection Methodologies. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2011.
Παραπομπή MLAEuropean Commission : Directorate-General for Economic and Financial Affairs., European Commission. Directorate-General for Taxation and Customs Union, Office for Official Publications of the European Communities, and European Commission. The 2012 Ageing Report: Underlying Assumptions and Projection Methodologies. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2011.