Gorbachev elected president of the Soviet Union. (2013). The History Channel website. Retrieved 11:40, June 17, 2013, from http://www.history.com/this-day-in-history/gorbachev-elected-president-of-the-soviet-union.
Gorbachev elected president of the Soviet Union. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/gorbachev-elected-president-of-the-soviet-union [Accessed 17 Jun 2013].
“Gorbachev elected president of the Soviet Union.” 2013. The History Channel website. Jun 17 2013, 11:40 http://www.history.com/this-day-in-history/gorbachev-elected-president-of-the-soviet-union.
“Gorbachev elected president of the Soviet Union,” The History Channel website, 2013, http://www.history.com/this-day-in-history/gorbachev-elected-president-of-the-soviet-union [accessed Jun 17, 2013].
“Gorbachev elected president of the Soviet Union,” The History Channel website, http://www.history.com/this-day-in-history/gorbachev-elected-president-of-the-soviet-union (accessed Jun 17, 2013).
Gorbachev elected president of the Soviet Union [Internet]. The History Channel website; 2013 [cited 2013 Jun 17] Available from: http://www.history.com/this-day-in-history/gorbachev-elected-president-of-the-soviet-union.
Gorbachev elected president of the Soviet Union, http://www.history.com/this-day-in-history/gorbachev-elected-president-of-the-soviet-union (last visited Jun 17, 2013).
Gorbachev elected president of the Soviet Union. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/gorbachev-elected-president-of-the-soviet-union. Accessed Jun 17, 2013.