APA (7th ed.) Citation

Mark, G. (2007). Prisoners of war in British hands during WWI: A study of their history, the camps and their mails. Postal History Soc.

Chicago Style (17th ed.) Citation

Mark, Graham. Prisoners of War in British Hands During WWI: A Study of Their History, the Camps and Their Mails. [Great Britain]: Postal History Soc, 2007.

MLA (9th ed.) Citation

Mark, Graham. Prisoners of War in British Hands During WWI: A Study of Their History, the Camps and Their Mails. Postal History Soc, 2007.