European Commission. (1996). Council regulation (EEC) no. 3975/87 of 14 December 1987 laying down the procedure for the application of the rules on competition to undertakings in the air transport sector: 9 languages. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Commission. Council Regulation (EEC) No. 3975/87 of 14 December 1987 Laying Down the Procedure for the Application of the Rules On Competition to Undertakings in the Air Transport Sector: 9 Languages. Luxembourg: Office for Official Publications of the European Communities, 1996.
Παραπομπή MLAEuropean Commission. Council Regulation (EEC) No. 3975/87 of 14 December 1987 Laying Down the Procedure for the Application of the Rules On Competition to Undertakings in the Air Transport Sector: 9 Languages. Luxembourg: Office for Official Publications of the European Communities, 1996.