Outlaw Bill Doolin is killed. (2013). The History Channel website. Retrieved 9:58, May 23, 2013, from http://www.history.com/this-day-in-history/outlaw-bill-doolin-is-killed.
Outlaw Bill Doolin is killed. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/outlaw-bill-doolin-is-killed [Accessed 23 May 2013].
“Outlaw Bill Doolin is killed.” 2013. The History Channel website. May 23 2013, 9:58 http://www.history.com/this-day-in-history/outlaw-bill-doolin-is-killed.
“Outlaw Bill Doolin is killed,” The History Channel website, 2013, http://www.history.com/this-day-in-history/outlaw-bill-doolin-is-killed [accessed May 23, 2013].
“Outlaw Bill Doolin is killed,” The History Channel website, http://www.history.com/this-day-in-history/outlaw-bill-doolin-is-killed (accessed May 23, 2013).
Outlaw Bill Doolin is killed [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/outlaw-bill-doolin-is-killed.
Outlaw Bill Doolin is killed, http://www.history.com/this-day-in-history/outlaw-bill-doolin-is-killed (last visited May 23, 2013).
Outlaw Bill Doolin is killed. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/outlaw-bill-doolin-is-killed. Accessed May 23, 2013.