McCarthy to enter Democratic presidential primary. (2013). The History Channel website. Retrieved 10:31, May 22, 2013, from http://www.history.com/this-day-in-history/mccarthy-to-enter-democratic-presidential-primary.
McCarthy to enter Democratic presidential primary. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/mccarthy-to-enter-democratic-presidential-primary [Accessed 22 May 2013].
“McCarthy to enter Democratic presidential primary.” 2013. The History Channel website. May 22 2013, 10:31 http://www.history.com/this-day-in-history/mccarthy-to-enter-democratic-presidential-primary.
“McCarthy to enter Democratic presidential primary,” The History Channel website, 2013, http://www.history.com/this-day-in-history/mccarthy-to-enter-democratic-presidential-primary [accessed May 22, 2013].
“McCarthy to enter Democratic presidential primary,” The History Channel website, http://www.history.com/this-day-in-history/mccarthy-to-enter-democratic-presidential-primary (accessed May 22, 2013).
McCarthy to enter Democratic presidential primary [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/mccarthy-to-enter-democratic-presidential-primary.
McCarthy to enter Democratic presidential primary, http://www.history.com/this-day-in-history/mccarthy-to-enter-democratic-presidential-primary (last visited May 22, 2013).
McCarthy to enter Democratic presidential primary. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/mccarthy-to-enter-democratic-presidential-primary. Accessed May 22, 2013.