L'Experience belge et l'unification economique de l'Europe. Extrait d'une intervention de M. Jean Rey, ministre belge des Affaires economiques, au cours de la Conference internationale de la Ligue europeenne de Cooperation economique sur le Marche commun. Bruxelles, 20 juin 1956 = The Belgian experience and the economic integration of Europe. Extract of a speech by Mr. Jean Rey, Belgian Minister for Economic Affairs, at the international conference of the European League for Economic Cooperation on the Common Market. Brussels, 20 june 1956