U.S.S. Monitor sinks. (2013). The History Channel website. Retrieved 6:56, May 23, 2013, from http://www.history.com/this-day-in-history/uss-monitor-sinks.
U.S.S. Monitor sinks. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/uss-monitor-sinks [Accessed 23 May 2013].
“U.S.S. Monitor sinks.” 2013. The History Channel website. May 23 2013, 6:56 http://www.history.com/this-day-in-history/uss-monitor-sinks.
“U.S.S. Monitor sinks,” The History Channel website, 2013, http://www.history.com/this-day-in-history/uss-monitor-sinks [accessed May 23, 2013].
“U.S.S. Monitor sinks,” The History Channel website, http://www.history.com/this-day-in-history/uss-monitor-sinks (accessed May 23, 2013).
U.S.S. Monitor sinks [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/uss-monitor-sinks.
U.S.S. Monitor sinks, http://www.history.com/this-day-in-history/uss-monitor-sinks (last visited May 23, 2013).
U.S.S. Monitor sinks. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/uss-monitor-sinks. Accessed May 23, 2013.