The Medieval Ball and Chain. (2013). The History Channel website. Retrieved 6:10, May 22, 2013, from http://www.history.com/videos/dark-ages-conquest---the-ball-and-chain.
The Medieval Ball and Chain. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/videos/dark-ages-conquest---the-ball-and-chain [Accessed 22 May 2013].
“The Medieval Ball and Chain.” 2013. The History Channel website. May 22 2013, 6:10 http://www.history.com/videos/dark-ages-conquest---the-ball-and-chain.
“The Medieval Ball and Chain,” The History Channel website, 2013, http://www.history.com/videos/dark-ages-conquest---the-ball-and-chain [accessed May 22, 2013].
“The Medieval Ball and Chain,” The History Channel website, http://www.history.com/videos/dark-ages-conquest---the-ball-and-chain (accessed May 22, 2013).
The Medieval Ball and Chain [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/videos/dark-ages-conquest---the-ball-and-chain.
The Medieval Ball and Chain, http://www.history.com/videos/dark-ages-conquest---the-ball-and-chain (last visited May 22, 2013).
The Medieval Ball and Chain. The History Channel website. 2013. Available at: http://www.history.com/videos/dark-ages-conquest---the-ball-and-chain. Accessed May 22, 2013.