Black Death is created, allegedly. (2013). The History Channel website. Retrieved 4:38, May 21, 2013, from http://www.history.com/this-day-in-history/black-death-is-created-allegedly.
Black Death is created, allegedly. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/black-death-is-created-allegedly [Accessed 21 May 2013].
“Black Death is created, allegedly.” 2013. The History Channel website. May 21 2013, 4:38 http://www.history.com/this-day-in-history/black-death-is-created-allegedly.
“Black Death is created, allegedly,” The History Channel website, 2013, http://www.history.com/this-day-in-history/black-death-is-created-allegedly [accessed May 21, 2013].
“Black Death is created, allegedly,” The History Channel website, http://www.history.com/this-day-in-history/black-death-is-created-allegedly (accessed May 21, 2013).
Black Death is created, allegedly [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/this-day-in-history/black-death-is-created-allegedly.
Black Death is created, allegedly, http://www.history.com/this-day-in-history/black-death-is-created-allegedly (last visited May 21, 2013).
Black Death is created, allegedly. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/black-death-is-created-allegedly. Accessed May 21, 2013.