Johnson considers the options. (2013). The History Channel website. Retrieved 9:43, May 23, 2013, from http://www.history.com/this-day-in-history/johnson-considers-the-options.
Johnson considers the options. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/johnson-considers-the-options [Accessed 23 May 2013].
“Johnson considers the options.” 2013. The History Channel website. May 23 2013, 9:43 http://www.history.com/this-day-in-history/johnson-considers-the-options.
“Johnson considers the options,” The History Channel website, 2013, http://www.history.com/this-day-in-history/johnson-considers-the-options [accessed May 23, 2013].
“Johnson considers the options,” The History Channel website, http://www.history.com/this-day-in-history/johnson-considers-the-options (accessed May 23, 2013).
Johnson considers the options [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/johnson-considers-the-options.
Johnson considers the options, http://www.history.com/this-day-in-history/johnson-considers-the-options (last visited May 23, 2013).
Johnson considers the options. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/johnson-considers-the-options. Accessed May 23, 2013.