European Commission. (1988). Purchasing power parities and gross domestic product in real terms: Results 1985= parites de pouvoir d'achat et produit interieur brut reel: resultats 1985. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Commission. Purchasing Power Parities and Gross Domestic Product in Real Terms: Results 1985= Parites De Pouvoir D'achat Et Produit Interieur Brut Reel: Resultats 1985. Luxembourg: Office for Official Publications of the European Communities, 1988.
Παραπομπή MLAEuropean Commission. Purchasing Power Parities and Gross Domestic Product in Real Terms: Results 1985= Parites De Pouvoir D'achat Et Produit Interieur Brut Reel: Resultats 1985. Luxembourg: Office for Official Publications of the European Communities, 1988.