Kasparov loses chess game to computer. (2013). The History Channel website. Retrieved 5:08, May 23, 2013, from http://www.history.com/this-day-in-history/kasparov-loses-chess-game-to-computer.
Kasparov loses chess game to computer. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/kasparov-loses-chess-game-to-computer [Accessed 23 May 2013].
“Kasparov loses chess game to computer.” 2013. The History Channel website. May 23 2013, 5:08 http://www.history.com/this-day-in-history/kasparov-loses-chess-game-to-computer.
“Kasparov loses chess game to computer,” The History Channel website, 2013, http://www.history.com/this-day-in-history/kasparov-loses-chess-game-to-computer [accessed May 23, 2013].
“Kasparov loses chess game to computer,” The History Channel website, http://www.history.com/this-day-in-history/kasparov-loses-chess-game-to-computer (accessed May 23, 2013).
Kasparov loses chess game to computer [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/kasparov-loses-chess-game-to-computer.
Kasparov loses chess game to computer, http://www.history.com/this-day-in-history/kasparov-loses-chess-game-to-computer (last visited May 23, 2013).
Kasparov loses chess game to computer. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/kasparov-loses-chess-game-to-computer. Accessed May 23, 2013.