Heavy Cavalry of the Middle Ages. (2013). The History Channel website. Retrieved 7:12, May 25, 2013, from http://www.history.com/videos/heavy-cavalry-of-the-middle-ages.
Heavy Cavalry of the Middle Ages. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/videos/heavy-cavalry-of-the-middle-ages [Accessed 25 May 2013].
“Heavy Cavalry of the Middle Ages.” 2013. The History Channel website. May 25 2013, 7:12 http://www.history.com/videos/heavy-cavalry-of-the-middle-ages.
“Heavy Cavalry of the Middle Ages,” The History Channel website, 2013, http://www.history.com/videos/heavy-cavalry-of-the-middle-ages [accessed May 25, 2013].
“Heavy Cavalry of the Middle Ages,” The History Channel website, http://www.history.com/videos/heavy-cavalry-of-the-middle-ages (accessed May 25, 2013).
Heavy Cavalry of the Middle Ages [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/videos/heavy-cavalry-of-the-middle-ages.
Heavy Cavalry of the Middle Ages, http://www.history.com/videos/heavy-cavalry-of-the-middle-ages (last visited May 25, 2013).
Heavy Cavalry of the Middle Ages. The History Channel website. 2013. Available at: http://www.history.com/videos/heavy-cavalry-of-the-middle-ages. Accessed May 25, 2013.