National emergency declared in Cambodia. (2013). The History Channel website. Retrieved 1:29, May 20, 2013, from http://www.history.com/this-day-in-history/national-emergency-declared-in-cambodia.
National emergency declared in Cambodia. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/national-emergency-declared-in-cambodia [Accessed 20 May 2013].
“National emergency declared in Cambodia.” 2013. The History Channel website. May 20 2013, 1:29 http://www.history.com/this-day-in-history/national-emergency-declared-in-cambodia.
“National emergency declared in Cambodia,” The History Channel website, 2013, http://www.history.com/this-day-in-history/national-emergency-declared-in-cambodia [accessed May 20, 2013].
“National emergency declared in Cambodia,” The History Channel website, http://www.history.com/this-day-in-history/national-emergency-declared-in-cambodia (accessed May 20, 2013).
National emergency declared in Cambodia [Internet]. The History Channel website; 2013 [cited 2013 May 20] Available from: http://www.history.com/this-day-in-history/national-emergency-declared-in-cambodia.
National emergency declared in Cambodia, http://www.history.com/this-day-in-history/national-emergency-declared-in-cambodia (last visited May 20, 2013).
National emergency declared in Cambodia. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/national-emergency-declared-in-cambodia. Accessed May 20, 2013.