Mikhail Gorbachev arrives in United States for summit with Ronald Reagan. (2013). The History Channel website. Retrieved 2:43, May 24, 2013, from http://www.history.com/this-day-in-history/mikhail-gorbachev-arrives-in-united-states-for-summit-with-ronald-reagan.
Mikhail Gorbachev arrives in United States for summit with Ronald Reagan. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/mikhail-gorbachev-arrives-in-united-states-for-summit-with-ronald-reagan [Accessed 24 May 2013].
“Mikhail Gorbachev arrives in United States for summit with Ronald Reagan.” 2013. The History Channel website. May 24 2013, 2:43 http://www.history.com/this-day-in-history/mikhail-gorbachev-arrives-in-united-states-for-summit-with-ronald-reagan.
“Mikhail Gorbachev arrives in United States for summit with Ronald Reagan,” The History Channel website, 2013, http://www.history.com/this-day-in-history/mikhail-gorbachev-arrives-in-united-states-for-summit-with-ronald-reagan [accessed May 24, 2013].
“Mikhail Gorbachev arrives in United States for summit with Ronald Reagan,” The History Channel website, http://www.history.com/this-day-in-history/mikhail-gorbachev-arrives-in-united-states-for-summit-with-ronald-reagan (accessed May 24, 2013).
Mikhail Gorbachev arrives in United States for summit with Ronald Reagan [Internet]. The History Channel website; 2013 [cited 2013 May 24] Available from: http://www.history.com/this-day-in-history/mikhail-gorbachev-arrives-in-united-states-for-summit-with-ronald-reagan.
Mikhail Gorbachev arrives in United States for summit with Ronald Reagan, http://www.history.com/this-day-in-history/mikhail-gorbachev-arrives-in-united-states-for-summit-with-ronald-reagan (last visited May 24, 2013).
Mikhail Gorbachev arrives in United States for summit with Ronald Reagan. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/mikhail-gorbachev-arrives-in-united-states-for-summit-with-ronald-reagan. Accessed May 24, 2013.