Opie, R. (2000). The 1910s scrapbook: The decade of the Great War. New Cavendish Books.
Čikaški stil citiranja (17. izdanje)Opie, Robert. The 1910s Scrapbook: The Decade of the Great War. London: New Cavendish Books, 2000.
MLA način citiranja (9. izdanje)Opie, Robert. The 1910s Scrapbook: The Decade of the Great War. New Cavendish Books, 2000.
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