Middleton, R. (1975). Negotiating on Non-Tariff Distortions of Trade: The EFTA Precedents. London: Trade Policy Research Centre.
استشهاد بنمط شيكاغوMiddleton, Robert. Negotiating On Non-Tariff Distortions of Trade: The EFTA Precedents. London: Trade Policy Research Centre, 1975.
MLA استشهادMiddleton, Robert. Negotiating On Non-Tariff Distortions of Trade: The EFTA Precedents. London: Trade Policy Research Centre, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.