Nixon Orders Invasion of Cambodia. (2013). The History Channel website. Retrieved 1:17, June 18, 2013, from http://www.history.com/speeches/nixon-orders-invasion-of-cambodia.
Nixon Orders Invasion of Cambodia. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/speeches/nixon-orders-invasion-of-cambodia [Accessed 18 Jun 2013].
“Nixon Orders Invasion of Cambodia.” 2013. The History Channel website. Jun 18 2013, 1:17 http://www.history.com/speeches/nixon-orders-invasion-of-cambodia.
“Nixon Orders Invasion of Cambodia,” The History Channel website, 2013, http://www.history.com/speeches/nixon-orders-invasion-of-cambodia [accessed Jun 18, 2013].
“Nixon Orders Invasion of Cambodia,” The History Channel website, http://www.history.com/speeches/nixon-orders-invasion-of-cambodia (accessed Jun 18, 2013).
Nixon Orders Invasion of Cambodia [Internet]. The History Channel website; 2013 [cited 2013 Jun 18] Available from: http://www.history.com/speeches/nixon-orders-invasion-of-cambodia.
Nixon Orders Invasion of Cambodia, http://www.history.com/speeches/nixon-orders-invasion-of-cambodia (last visited Jun 18, 2013).
Nixon Orders Invasion of Cambodia. The History Channel website. 2013. Available at: http://www.history.com/speeches/nixon-orders-invasion-of-cambodia. Accessed Jun 18, 2013.