Παραπομπή σε μορφή APA (7η εκδ.)

European Commission. (2003). The environment?: What europeans think. Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Commission. The Environment?: What Europeans Think. Luxembourg: Office for Official Publications of the European Communities, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

European Commission. The Environment?: What Europeans Think. Office for Official Publications of the European Communities, 2003.