Παραπομπή σε μορφή APA (7η εκδ.)

European Commission. (2011). Saving energy: Time to step up our efforts. Publications Office of the European Union.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Commission. Saving Energy: Time to Step Up Our Efforts. Luxembourg: Publications Office of the European Union, 2011.

Παραπομπή σε μορφή MLA (8th εκδ.)

European Commission. Saving Energy: Time to Step Up Our Efforts. Publications Office of the European Union, 2011.