Sohn, C. (2018). Ambivalent Borders: Over the past two decades, national borders have made a dramatic comeback on the geopolitical stage as well as in everyday life. / von Christophe Sohn. Topos.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sohn, Christophe. "Ambivalent Borders: Over the Past Two Decades, National Borders Have Made a Dramatic Comeback on the Geopolitical Stage as Well as in Everyday Life. / Von Christophe Sohn." Topos 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sohn, Christophe. "Ambivalent Borders: Over the Past Two Decades, National Borders Have Made a Dramatic Comeback on the Geopolitical Stage as Well as in Everyday Life. / Von Christophe Sohn." Topos, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.