Hayes has first phone installed in White House. (2013). The History Channel website. Retrieved 6:30, May 22, 2013, from http://www.history.com/this-day-in-history/hayes-has-first-phone-installed-in-white-house.
Hayes has first phone installed in White House. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/hayes-has-first-phone-installed-in-white-house [Accessed 22 May 2013].
“Hayes has first phone installed in White House.” 2013. The History Channel website. May 22 2013, 6:30 http://www.history.com/this-day-in-history/hayes-has-first-phone-installed-in-white-house.
“Hayes has first phone installed in White House,” The History Channel website, 2013, http://www.history.com/this-day-in-history/hayes-has-first-phone-installed-in-white-house [accessed May 22, 2013].
“Hayes has first phone installed in White House,” The History Channel website, http://www.history.com/this-day-in-history/hayes-has-first-phone-installed-in-white-house (accessed May 22, 2013).
Hayes has first phone installed in White House [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/hayes-has-first-phone-installed-in-white-house.
Hayes has first phone installed in White House, http://www.history.com/this-day-in-history/hayes-has-first-phone-installed-in-white-house (last visited May 22, 2013).
Hayes has first phone installed in White House. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/hayes-has-first-phone-installed-in-white-house. Accessed May 22, 2013.