European Commission. (1997). Council Regulation (EEC) no 2092/91 of 24 June 1991 on organic production of agricultural products and indications referring thereto on agricultural products and foodstuffs: 11 languages. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων.
Παραπομπή Chicago StyleEuropean Commission. Council Regulation (EEC) No 2092/91 of 24 June 1991 On Organic Production of Agricultural Products and Indications Referring Thereto On Agricultural Products and Foodstuffs: 11 Languages. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 1997.
Παραπομπή MLAEuropean Commission. Council Regulation (EEC) No 2092/91 of 24 June 1991 On Organic Production of Agricultural Products and Indications Referring Thereto On Agricultural Products and Foodstuffs: 11 Languages. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 1997.