Sitting Bull surrenders. (2013). The History Channel website. Retrieved 9:07, May 21, 2013, from http://www.history.com/this-day-in-history/sitting-bull-surrenders.
Sitting Bull surrenders. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/sitting-bull-surrenders [Accessed 21 May 2013].
“Sitting Bull surrenders.” 2013. The History Channel website. May 21 2013, 9:07 http://www.history.com/this-day-in-history/sitting-bull-surrenders.
“Sitting Bull surrenders,” The History Channel website, 2013, http://www.history.com/this-day-in-history/sitting-bull-surrenders [accessed May 21, 2013].
“Sitting Bull surrenders,” The History Channel website, http://www.history.com/this-day-in-history/sitting-bull-surrenders (accessed May 21, 2013).
Sitting Bull surrenders [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/this-day-in-history/sitting-bull-surrenders.
Sitting Bull surrenders, http://www.history.com/this-day-in-history/sitting-bull-surrenders (last visited May 21, 2013).
Sitting Bull surrenders. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/sitting-bull-surrenders. Accessed May 21, 2013.