Humphrey announces his candidacy. (2013). The History Channel website. Retrieved 8:07, May 18, 2013, from http://www.history.com/this-day-in-history/humphrey-announces-his-candidacy.
Humphrey announces his candidacy. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/humphrey-announces-his-candidacy [Accessed 18 May 2013].
“Humphrey announces his candidacy.” 2013. The History Channel website. May 18 2013, 8:07 http://www.history.com/this-day-in-history/humphrey-announces-his-candidacy.
“Humphrey announces his candidacy,” The History Channel website, 2013, http://www.history.com/this-day-in-history/humphrey-announces-his-candidacy [accessed May 18, 2013].
“Humphrey announces his candidacy,” The History Channel website, http://www.history.com/this-day-in-history/humphrey-announces-his-candidacy (accessed May 18, 2013).
Humphrey announces his candidacy [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/humphrey-announces-his-candidacy.
Humphrey announces his candidacy, http://www.history.com/this-day-in-history/humphrey-announces-his-candidacy (last visited May 18, 2013).
Humphrey announces his candidacy. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/humphrey-announces-his-candidacy. Accessed May 18, 2013.