World's largest diamond found. (2013). The History Channel website. Retrieved 10:21, May 20, 2013, from http://www.history.com/this-day-in-history/worlds-largest-diamond-found.
World's largest diamond found. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/worlds-largest-diamond-found [Accessed 20 May 2013].
“World's largest diamond found.” 2013. The History Channel website. May 20 2013, 10:21 http://www.history.com/this-day-in-history/worlds-largest-diamond-found.
“World's largest diamond found,” The History Channel website, 2013, http://www.history.com/this-day-in-history/worlds-largest-diamond-found [accessed May 20, 2013].
“World's largest diamond found,” The History Channel website, http://www.history.com/this-day-in-history/worlds-largest-diamond-found (accessed May 20, 2013).
World's largest diamond found [Internet]. The History Channel website; 2013 [cited 2013 May 20] Available from: http://www.history.com/this-day-in-history/worlds-largest-diamond-found.
World's largest diamond found, http://www.history.com/this-day-in-history/worlds-largest-diamond-found (last visited May 20, 2013).
World's largest diamond found. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/worlds-largest-diamond-found. Accessed May 20, 2013.