Kerkhofs, M., Ester, P., Roman, A., & European Foundation for the improvement of living and working conditions. (2010). Flexibility profiles of European companies: European Company Survey 2009. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων.
Παραπομπή Chicago StyleKerkhofs, Marcel., Peter Ester, Amelia Roman, and European Foundation for the improvement of living and working conditions. Flexibility Profiles of European Companies: European Company Survey 2009. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2010.
Παραπομπή MLAKerkhofs, Marcel., Peter Ester, Amelia Roman, and European Foundation for the improvement of living and working conditions. Flexibility Profiles of European Companies: European Company Survey 2009. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2010.