European Foundation for the improvement of living and working conditions., Eiffe, F., Abdallah, S., & Stoll, L. (2012). 3rd European Quality of Life Survey: Quality of life in Europe : subjective well-being. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων.
Παραπομπή Chicago StyleEuropean Foundation for the improvement of living and working conditions., Franz Eiffe, Saamah Abdallah, and Laura Stoll. 3rd European Quality of Life Survey: Quality of Life in Europe : Subjective Well-being. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2012.
Παραπομπή MLAEuropean Foundation for the improvement of living and working conditions., Franz Eiffe, Saamah Abdallah, and Laura Stoll. 3rd European Quality of Life Survey: Quality of Life in Europe : Subjective Well-being. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2012.