Operation Knight's Move is launched. (2013). The History Channel website. Retrieved 11:46, May 22, 2013, from http://www.history.com/this-day-in-history/operation-knights-move-is-launched.
Operation Knight's Move is launched. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/operation-knights-move-is-launched [Accessed 22 May 2013].
“Operation Knight's Move is launched.” 2013. The History Channel website. May 22 2013, 11:46 http://www.history.com/this-day-in-history/operation-knights-move-is-launched.
“Operation Knight's Move is launched,” The History Channel website, 2013, http://www.history.com/this-day-in-history/operation-knights-move-is-launched [accessed May 22, 2013].
“Operation Knight's Move is launched,” The History Channel website, http://www.history.com/this-day-in-history/operation-knights-move-is-launched (accessed May 22, 2013).
Operation Knight's Move is launched [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/operation-knights-move-is-launched.
Operation Knight's Move is launched, http://www.history.com/this-day-in-history/operation-knights-move-is-launched (last visited May 22, 2013).
Operation Knight's Move is launched. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/operation-knights-move-is-launched. Accessed May 22, 2013.