Colorado militia massacre Cheyenne at Sand Creek. (2013). The History Channel website. Retrieved 2:41, May 19, 2013, from http://www.history.com/this-day-in-history/colorado-militia-massacre-cheyenne-at-sand-creek.
Colorado militia massacre Cheyenne at Sand Creek. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/colorado-militia-massacre-cheyenne-at-sand-creek [Accessed 19 May 2013].
“Colorado militia massacre Cheyenne at Sand Creek.” 2013. The History Channel website. May 19 2013, 2:41 http://www.history.com/this-day-in-history/colorado-militia-massacre-cheyenne-at-sand-creek.
“Colorado militia massacre Cheyenne at Sand Creek,” The History Channel website, 2013, http://www.history.com/this-day-in-history/colorado-militia-massacre-cheyenne-at-sand-creek [accessed May 19, 2013].
“Colorado militia massacre Cheyenne at Sand Creek,” The History Channel website, http://www.history.com/this-day-in-history/colorado-militia-massacre-cheyenne-at-sand-creek (accessed May 19, 2013).
Colorado militia massacre Cheyenne at Sand Creek [Internet]. The History Channel website; 2013 [cited 2013 May 19] Available from: http://www.history.com/this-day-in-history/colorado-militia-massacre-cheyenne-at-sand-creek.
Colorado militia massacre Cheyenne at Sand Creek, http://www.history.com/this-day-in-history/colorado-militia-massacre-cheyenne-at-sand-creek (last visited May 19, 2013).
Colorado militia massacre Cheyenne at Sand Creek. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/colorado-militia-massacre-cheyenne-at-sand-creek. Accessed May 19, 2013.