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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSohn, 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSohn, 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.
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