European Commission. (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. Publications Office of the European Union.
Παραπομπή σε μορφή Chicago (17η εκδ.)European Commission. 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. Luxembourg: Publications Office of the European Union, 2013.
Παραπομπή σε μορφή MLA (8th εκδ.)European Commission. 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. Publications Office of the European Union, 2013.
