Confederate submarine sinks during tests. (2013). The History Channel website. Retrieved 10:11, May 23, 2013, from http://www.history.com/this-day-in-history/css-hunley-sinks-during-tests.
Confederate submarine sinks during tests. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/css-hunley-sinks-during-tests [Accessed 23 May 2013].
“Confederate submarine sinks during tests.” 2013. The History Channel website. May 23 2013, 10:11 http://www.history.com/this-day-in-history/css-hunley-sinks-during-tests.
“Confederate submarine sinks during tests,” The History Channel website, 2013, http://www.history.com/this-day-in-history/css-hunley-sinks-during-tests [accessed May 23, 2013].
“Confederate submarine sinks during tests,” The History Channel website, http://www.history.com/this-day-in-history/css-hunley-sinks-during-tests (accessed May 23, 2013).
Confederate submarine sinks during tests [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/css-hunley-sinks-during-tests.
Confederate submarine sinks during tests, http://www.history.com/this-day-in-history/css-hunley-sinks-during-tests (last visited May 23, 2013).
Confederate submarine sinks during tests. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/css-hunley-sinks-during-tests. Accessed May 23, 2013.