European Free Trade Association. Secretariat. (1980). EFTA - past and future: A discussion paper on achievements in free trade and future possiblities. The Secretariat.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)European Free Trade Association. Secretariat. EFTA - Past and Future: A Discussion Paper on Achievements in Free Trade and Future Possiblities. Geneva: The Secretariat, 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)European Free Trade Association. Secretariat. EFTA - Past and Future: A Discussion Paper on Achievements in Free Trade and Future Possiblities. The Secretariat, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.