Mike Tyson unifies titles. (2013). The History Channel website. Retrieved 3:26, May 19, 2013, from http://www.history.com/this-day-in-history/mike-tyson-unifies-titles.
Mike Tyson unifies titles. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/mike-tyson-unifies-titles [Accessed 19 May 2013].
“Mike Tyson unifies titles.” 2013. The History Channel website. May 19 2013, 3:26 http://www.history.com/this-day-in-history/mike-tyson-unifies-titles.
“Mike Tyson unifies titles,” The History Channel website, 2013, http://www.history.com/this-day-in-history/mike-tyson-unifies-titles [accessed May 19, 2013].
“Mike Tyson unifies titles,” The History Channel website, http://www.history.com/this-day-in-history/mike-tyson-unifies-titles (accessed May 19, 2013).
Mike Tyson unifies titles [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/this-day-in-history/mike-tyson-unifies-titles.
Mike Tyson unifies titles, http://www.history.com/this-day-in-history/mike-tyson-unifies-titles (last visited May 19, 2013).
Mike Tyson unifies titles. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/mike-tyson-unifies-titles. Accessed May 19, 2013.