ebrary, Inc, & Enderle-Burcel, G. (2009). Gaps in the Iron Curtain: Economic relations between neutral and socialist countries in Cold War Europe. Jagiellonian University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ebrary, Inc, و Gertrude Enderle-Burcel. Gaps in the Iron Curtain: Economic Relations Between Neutral and Socialist Countries in Cold War Europe. Krakow: Jagiellonian University Press, 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ebrary, Inc, و Gertrude Enderle-Burcel. Gaps in the Iron Curtain: Economic Relations Between Neutral and Socialist Countries in Cold War Europe. Jagiellonian University Press, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.