Cambodia falls to the Khmer Rouge. (2013). The History Channel website. Retrieved 8:21, May 25, 2013, from http://www.history.com/this-day-in-history/cambodia-falls-to-the-khmer-rouge.
Cambodia falls to the Khmer Rouge. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/cambodia-falls-to-the-khmer-rouge [Accessed 25 May 2013].
“Cambodia falls to the Khmer Rouge.” 2013. The History Channel website. May 25 2013, 8:21 http://www.history.com/this-day-in-history/cambodia-falls-to-the-khmer-rouge.
“Cambodia falls to the Khmer Rouge,” The History Channel website, 2013, http://www.history.com/this-day-in-history/cambodia-falls-to-the-khmer-rouge [accessed May 25, 2013].
“Cambodia falls to the Khmer Rouge,” The History Channel website, http://www.history.com/this-day-in-history/cambodia-falls-to-the-khmer-rouge (accessed May 25, 2013).
Cambodia falls to the Khmer Rouge [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/cambodia-falls-to-the-khmer-rouge.
Cambodia falls to the Khmer Rouge, http://www.history.com/this-day-in-history/cambodia-falls-to-the-khmer-rouge (last visited May 25, 2013).
Cambodia falls to the Khmer Rouge. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/cambodia-falls-to-the-khmer-rouge. Accessed May 25, 2013.