Παραπομπή σε μορφή APA (7η εκδ.)

European Commission. (2004). International aviation agreements: Opening the market for efficient air travel. Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Commission. International Aviation Agreements: Opening the Market for Efficient Air Travel. Luxembourg: Office for Official Publications of the European Communities, 2004.

Παραπομπή σε μορφή MLA (8th εκδ.)

European Commission. International Aviation Agreements: Opening the Market for Efficient Air Travel. Office for Official Publications of the European Communities, 2004.