Russian sub sinks with 118 onboard. (2013). The History Channel website. Retrieved 3:56, May 21, 2013, from http://www.history.com/this-day-in-history/russian-sub-sinks-with-118-onboard.
Russian sub sinks with 118 onboard. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/russian-sub-sinks-with-118-onboard [Accessed 21 May 2013].
“Russian sub sinks with 118 onboard.” 2013. The History Channel website. May 21 2013, 3:56 http://www.history.com/this-day-in-history/russian-sub-sinks-with-118-onboard.
“Russian sub sinks with 118 onboard,” The History Channel website, 2013, http://www.history.com/this-day-in-history/russian-sub-sinks-with-118-onboard [accessed May 21, 2013].
“Russian sub sinks with 118 onboard,” The History Channel website, http://www.history.com/this-day-in-history/russian-sub-sinks-with-118-onboard (accessed May 21, 2013).
Russian sub sinks with 118 onboard [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/this-day-in-history/russian-sub-sinks-with-118-onboard.
Russian sub sinks with 118 onboard, http://www.history.com/this-day-in-history/russian-sub-sinks-with-118-onboard (last visited May 21, 2013).
Russian sub sinks with 118 onboard. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/russian-sub-sinks-with-118-onboard. Accessed May 21, 2013.