Battle of the Ironclads. (2013). The History Channel website. Retrieved 2:24, May 21, 2013, from http://www.history.com/this-day-in-history/battle-of-the-ironclads.
Battle of the Ironclads. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/battle-of-the-ironclads [Accessed 21 May 2013].
“Battle of the Ironclads.” 2013. The History Channel website. May 21 2013, 2:24 http://www.history.com/this-day-in-history/battle-of-the-ironclads.
“Battle of the Ironclads,” The History Channel website, 2013, http://www.history.com/this-day-in-history/battle-of-the-ironclads [accessed May 21, 2013].
“Battle of the Ironclads,” The History Channel website, http://www.history.com/this-day-in-history/battle-of-the-ironclads (accessed May 21, 2013).
Battle of the Ironclads [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/this-day-in-history/battle-of-the-ironclads.
Battle of the Ironclads, http://www.history.com/this-day-in-history/battle-of-the-ironclads (last visited May 21, 2013).
Battle of the Ironclads. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/battle-of-the-ironclads. Accessed May 21, 2013.