Chernenko becomes general secretary. (2013). The History Channel website. Retrieved 1:47, May 22, 2013, from http://www.history.com/this-day-in-history/chernenko-becomes-general-secretary.
Chernenko becomes general secretary. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/chernenko-becomes-general-secretary [Accessed 22 May 2013].
“Chernenko becomes general secretary.” 2013. The History Channel website. May 22 2013, 1:47 http://www.history.com/this-day-in-history/chernenko-becomes-general-secretary.
“Chernenko becomes general secretary,” The History Channel website, 2013, http://www.history.com/this-day-in-history/chernenko-becomes-general-secretary [accessed May 22, 2013].
“Chernenko becomes general secretary,” The History Channel website, http://www.history.com/this-day-in-history/chernenko-becomes-general-secretary (accessed May 22, 2013).
Chernenko becomes general secretary [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/chernenko-becomes-general-secretary.
Chernenko becomes general secretary, http://www.history.com/this-day-in-history/chernenko-becomes-general-secretary (last visited May 22, 2013).
Chernenko becomes general secretary. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/chernenko-becomes-general-secretary. Accessed May 22, 2013.