APA-referens (7:e uppl.)
Farrington, K. (2015). Brothers in arms: The unique collection of letters and photographs from two brothers at the front during the First World War. Pen & Sword Military.
Chicago-referens (17:e uppl.)
Farrington, Karen. Brothers in Arms: The Unique Collection of Letters and Photographs from Two Brothers at the Front During the First World War. Barnsley, England: Pen & Sword Military, 2015.
MLA-referens (9:e uppl.)
Farrington, Karen. Brothers in Arms: The Unique Collection of Letters and Photographs from Two Brothers at the Front During the First World War. Pen & Sword Military, 2015.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.