Krell, A. (2002). The devil's rope: A cultural history of barbed wire. Reaktion Books.
Lua i Stíl Chicago (17ú heag.)Krell, Alan. The Devil's Rope: A Cultural History of Barbed Wire. London: Reaktion Books, 2002.
Lua MLA (8ú heag.)Krell, Alan. The Devil's Rope: A Cultural History of Barbed Wire. Reaktion Books, 2002.
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