Παραπομπή σε μορφή APA (7η εκδ.)

European Commission. (1999). State aid and the single market. Office of the Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

European Commission. State Aid and the Single Market. Luxemburg: Office of the Official Publications of the European Communities, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

European Commission. State Aid and the Single Market. Office of the Official Publications of the European Communities, 1999.