Mikhail Gorbachev picked to succeed Chernenko. (2013). The History Channel website. Retrieved 10:45, May 23, 2013, from http://www.history.com/this-day-in-history/mikhail-gorbachev-picked-to-succeed-chernenko.
Mikhail Gorbachev picked to succeed Chernenko. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/mikhail-gorbachev-picked-to-succeed-chernenko [Accessed 23 May 2013].
“Mikhail Gorbachev picked to succeed Chernenko.” 2013. The History Channel website. May 23 2013, 10:45 http://www.history.com/this-day-in-history/mikhail-gorbachev-picked-to-succeed-chernenko.
“Mikhail Gorbachev picked to succeed Chernenko,” The History Channel website, 2013, http://www.history.com/this-day-in-history/mikhail-gorbachev-picked-to-succeed-chernenko [accessed May 23, 2013].
“Mikhail Gorbachev picked to succeed Chernenko,” The History Channel website, http://www.history.com/this-day-in-history/mikhail-gorbachev-picked-to-succeed-chernenko (accessed May 23, 2013).
Mikhail Gorbachev picked to succeed Chernenko [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/mikhail-gorbachev-picked-to-succeed-chernenko.
Mikhail Gorbachev picked to succeed Chernenko, http://www.history.com/this-day-in-history/mikhail-gorbachev-picked-to-succeed-chernenko (last visited May 23, 2013).
Mikhail Gorbachev picked to succeed Chernenko. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/mikhail-gorbachev-picked-to-succeed-chernenko. Accessed May 23, 2013.