William Seward. (2013). The History Channel website. Retrieved 5:37, May 23, 2013, from http://www.history.com/topics/william-seward.
William Seward. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/topics/william-seward [Accessed 23 May 2013].
“William Seward.” 2013. The History Channel website. May 23 2013, 5:37 http://www.history.com/topics/william-seward.
“William Seward,” The History Channel website, 2013, http://www.history.com/topics/william-seward [accessed May 23, 2013].
“William Seward,” The History Channel website, http://www.history.com/topics/william-seward (accessed May 23, 2013).
William Seward [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/topics/william-seward.
William Seward, http://www.history.com/topics/william-seward (last visited May 23, 2013).
William Seward. The History Channel website. 2013. Available at: http://www.history.com/topics/william-seward. Accessed May 23, 2013.