Friends debuts. (2013). The History Channel website. Retrieved 10:34, May 18, 2013, from http://www.history.com/this-day-in-history/friends-debuts.
Friends debuts. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/friends-debuts [Accessed 18 May 2013].
“Friends debuts.” 2013. The History Channel website. May 18 2013, 10:34 http://www.history.com/this-day-in-history/friends-debuts.
“Friends debuts,” The History Channel website, 2013, http://www.history.com/this-day-in-history/friends-debuts [accessed May 18, 2013].
“Friends debuts,” The History Channel website, http://www.history.com/this-day-in-history/friends-debuts (accessed May 18, 2013).
Friends debuts [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/friends-debuts.
Friends debuts, http://www.history.com/this-day-in-history/friends-debuts (last visited May 18, 2013).
Friends debuts. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/friends-debuts. Accessed May 18, 2013.