Final episode of Friends airs on NBC. (2013). The History Channel website. Retrieved 7:16, June 18, 2013, from http://www.history.com/this-day-in-history/final-episode-of-friends-airs-on-nbc.
Final episode of Friends airs on NBC. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/final-episode-of-friends-airs-on-nbc [Accessed 18 Jun 2013].
“Final episode of Friends airs on NBC.” 2013. The History Channel website. Jun 18 2013, 7:16 http://www.history.com/this-day-in-history/final-episode-of-friends-airs-on-nbc.
“Final episode of Friends airs on NBC,” The History Channel website, 2013, http://www.history.com/this-day-in-history/final-episode-of-friends-airs-on-nbc [accessed Jun 18, 2013].
“Final episode of Friends airs on NBC,” The History Channel website, http://www.history.com/this-day-in-history/final-episode-of-friends-airs-on-nbc (accessed Jun 18, 2013).
Final episode of Friends airs on NBC [Internet]. The History Channel website; 2013 [cited 2013 Jun 18] Available from: http://www.history.com/this-day-in-history/final-episode-of-friends-airs-on-nbc.
Final episode of Friends airs on NBC, http://www.history.com/this-day-in-history/final-episode-of-friends-airs-on-nbc (last visited Jun 18, 2013).
Final episode of Friends airs on NBC. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/final-episode-of-friends-airs-on-nbc. Accessed Jun 18, 2013.