Gorbachev consolidates power. (2013). The History Channel website. Retrieved 9:25, May 20, 2013, from http://www.history.com/this-day-in-history/gorbachev-consolidates-power.
Gorbachev consolidates power. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/gorbachev-consolidates-power [Accessed 20 May 2013].
“Gorbachev consolidates power.” 2013. The History Channel website. May 20 2013, 9:25 http://www.history.com/this-day-in-history/gorbachev-consolidates-power.
“Gorbachev consolidates power,” The History Channel website, 2013, http://www.history.com/this-day-in-history/gorbachev-consolidates-power [accessed May 20, 2013].
“Gorbachev consolidates power,” The History Channel website, http://www.history.com/this-day-in-history/gorbachev-consolidates-power (accessed May 20, 2013).
Gorbachev consolidates power [Internet]. The History Channel website; 2013 [cited 2013 May 20] Available from: http://www.history.com/this-day-in-history/gorbachev-consolidates-power.
Gorbachev consolidates power, http://www.history.com/this-day-in-history/gorbachev-consolidates-power (last visited May 20, 2013).
Gorbachev consolidates power. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/gorbachev-consolidates-power. Accessed May 20, 2013.