European Free Trade Association. Secretariat. (1980). EFTA - past and future: A discussion paper on achievements in free trade and future possiblities. The Secretariat.
Cita Chicago (17th ed.)European Free Trade Association. Secretariat. EFTA - Past and Future: A Discussion Paper on Achievements in Free Trade and Future Possiblities. Geneva: The Secretariat, 1980.
Cita MLA (8th ed.)European Free Trade Association. Secretariat. EFTA - Past and Future: A Discussion Paper on Achievements in Free Trade and Future Possiblities. The Secretariat, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.