European Commission. (1996). 89/196/EEC, Eratom, ECSC, Commission decision of 3 March 1989 laying down detailed rules for the declassification of documents covered by professional or business secrecy: Provisional, unrevised texts : 9 languages. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Kοινοτήτων.
Παραπομπή Chicago StyleEuropean Commission. 89/196/EEC, Eratom, ECSC, Commission Decision of 3 March 1989 Laying Down Detailed Rules for the Declassification of Documents Covered By Professional or Business Secrecy: Provisional, Unrevised Texts : 9 Languages. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Kοινοτήτων, 1996.
Παραπομπή MLAEuropean Commission. 89/196/EEC, Eratom, ECSC, Commission Decision of 3 March 1989 Laying Down Detailed Rules for the Declassification of Documents Covered By Professional or Business Secrecy: Provisional, Unrevised Texts : 9 Languages. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Kοινοτήτων, 1996.