Germany agrees to limit its submarine warfare. (2013). The History Channel website. Retrieved 2:02, May 19, 2013, from http://www.history.com/this-day-in-history/germany-agrees-to-limit-its-submarine-warfare.
Germany agrees to limit its submarine warfare. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/germany-agrees-to-limit-its-submarine-warfare [Accessed 19 May 2013].
“Germany agrees to limit its submarine warfare.” 2013. The History Channel website. May 19 2013, 2:02 http://www.history.com/this-day-in-history/germany-agrees-to-limit-its-submarine-warfare.
“Germany agrees to limit its submarine warfare,” The History Channel website, 2013, http://www.history.com/this-day-in-history/germany-agrees-to-limit-its-submarine-warfare [accessed May 19, 2013].
“Germany agrees to limit its submarine warfare,” The History Channel website, http://www.history.com/this-day-in-history/germany-agrees-to-limit-its-submarine-warfare (accessed May 19, 2013).
Germany agrees to limit its submarine warfare [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/this-day-in-history/germany-agrees-to-limit-its-submarine-warfare.
Germany agrees to limit its submarine warfare, http://www.history.com/this-day-in-history/germany-agrees-to-limit-its-submarine-warfare (last visited May 19, 2013).
Germany agrees to limit its submarine warfare. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/germany-agrees-to-limit-its-submarine-warfare. Accessed May 19, 2013.