Nixon announces his candidacy for president. (2013). The History Channel website. Retrieved 8:23, May 24, 2013, from http://www.history.com/this-day-in-history/nixon-announces-his-candidacy-for-president.
Nixon announces his candidacy for president. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/nixon-announces-his-candidacy-for-president [Accessed 24 May 2013].
“Nixon announces his candidacy for president.” 2013. The History Channel website. May 24 2013, 8:23 http://www.history.com/this-day-in-history/nixon-announces-his-candidacy-for-president.
“Nixon announces his candidacy for president,” The History Channel website, 2013, http://www.history.com/this-day-in-history/nixon-announces-his-candidacy-for-president [accessed May 24, 2013].
“Nixon announces his candidacy for president,” The History Channel website, http://www.history.com/this-day-in-history/nixon-announces-his-candidacy-for-president (accessed May 24, 2013).
Nixon announces his candidacy for president [Internet]. The History Channel website; 2013 [cited 2013 May 24] Available from: http://www.history.com/this-day-in-history/nixon-announces-his-candidacy-for-president.
Nixon announces his candidacy for president, http://www.history.com/this-day-in-history/nixon-announces-his-candidacy-for-president (last visited May 24, 2013).
Nixon announces his candidacy for president. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/nixon-announces-his-candidacy-for-president. Accessed May 24, 2013.