Political instability continues in South Vietnam. (2013). The History Channel website. Retrieved 1:19, May 24, 2013, from http://www.history.com/this-day-in-history/political-instability-continues-in-south-vietnam.
Political instability continues in South Vietnam. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/political-instability-continues-in-south-vietnam [Accessed 24 May 2013].
“Political instability continues in South Vietnam.” 2013. The History Channel website. May 24 2013, 1:19 http://www.history.com/this-day-in-history/political-instability-continues-in-south-vietnam.
“Political instability continues in South Vietnam,” The History Channel website, 2013, http://www.history.com/this-day-in-history/political-instability-continues-in-south-vietnam [accessed May 24, 2013].
“Political instability continues in South Vietnam,” The History Channel website, http://www.history.com/this-day-in-history/political-instability-continues-in-south-vietnam (accessed May 24, 2013).
Political instability continues in South Vietnam [Internet]. The History Channel website; 2013 [cited 2013 May 24] Available from: http://www.history.com/this-day-in-history/political-instability-continues-in-south-vietnam.
Political instability continues in South Vietnam, http://www.history.com/this-day-in-history/political-instability-continues-in-south-vietnam (last visited May 24, 2013).
Political instability continues in South Vietnam. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/political-instability-continues-in-south-vietnam. Accessed May 24, 2013.