European Commission., & European Commission Directorate-General for Employment, S. A. a. E. O. (2013). Chemicals at work - a new labelling system: Guidance to help employers and workers to manage the transition to the new classification, labelling and packaging system. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων.
Παραπομπή Chicago StyleEuropean Commission., and Social Affairs and Equal Opportunities European Commission Directorate-General for Employment. Chemicals At Work - a New Labelling System: Guidance to Help Employers and Workers to Manage the Transition to the New Classification, Labelling and Packaging System. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2013.
Παραπομπή MLAEuropean Commission., and Social Affairs and Equal Opportunities European Commission Directorate-General for Employment. Chemicals At Work - a New Labelling System: Guidance to Help Employers and Workers to Manage the Transition to the New Classification, Labelling and Packaging System. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2013.