President William McKinley is shot. (2013). The History Channel website. Retrieved 11:20, May 22, 2013, from http://www.history.com/this-day-in-history/president-william-mckinley-is-shot.
President William McKinley is shot. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/president-william-mckinley-is-shot [Accessed 22 May 2013].
“President William McKinley is shot.” 2013. The History Channel website. May 22 2013, 11:20 http://www.history.com/this-day-in-history/president-william-mckinley-is-shot.
“President William McKinley is shot,” The History Channel website, 2013, http://www.history.com/this-day-in-history/president-william-mckinley-is-shot [accessed May 22, 2013].
“President William McKinley is shot,” The History Channel website, http://www.history.com/this-day-in-history/president-william-mckinley-is-shot (accessed May 22, 2013).
President William McKinley is shot [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/president-william-mckinley-is-shot.
President William McKinley is shot, http://www.history.com/this-day-in-history/president-william-mckinley-is-shot (last visited May 22, 2013).
President William McKinley is shot. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/president-william-mckinley-is-shot. Accessed May 22, 2013.