Citazione Stile APA (7a Edizione)
(1981). Directory of the Commission of the European Communities. Commission of the European Communities.
Citazione stile Chigago Style (17a edizione)
Directory of the Commission of the European Communities. Brussels: Commission of the European Communities, 1981.
Citatione MLA (9a ed.)
Directory of the Commission of the European Communities. Commission of the European Communities, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.