McKernan, Luke (2002). "Propaganda, patriotism and profit: Charles Urban and British official war films in America during the First World War". Film History. 14 (3–4). Sydney: 369–389. doi:10.2979/FIL.2002.14.3-4.369. ProQuest219789669.
McKernan, Luke (2002). "Propaganda, patriotism and profit: Charles Urban and British official war films in America during the First World War". Film History. 14 (3–4). Sydney: 369–389. doi:10.2979/FIL.2002.14.3-4.369. ProQuest219789669.