First American soldier killed in Vietnam. (2013). The History Channel website. Retrieved 8:28, May 25, 2013, from http://www.history.com/this-day-in-history/first-american-soldier-killed-in-vietnam.
First American soldier killed in Vietnam. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/first-american-soldier-killed-in-vietnam [Accessed 25 May 2013].
“First American soldier killed in Vietnam.” 2013. The History Channel website. May 25 2013, 8:28 http://www.history.com/this-day-in-history/first-american-soldier-killed-in-vietnam.
“First American soldier killed in Vietnam,” The History Channel website, 2013, http://www.history.com/this-day-in-history/first-american-soldier-killed-in-vietnam [accessed May 25, 2013].
“First American soldier killed in Vietnam,” The History Channel website, http://www.history.com/this-day-in-history/first-american-soldier-killed-in-vietnam (accessed May 25, 2013).
First American soldier killed in Vietnam [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/first-american-soldier-killed-in-vietnam.
First American soldier killed in Vietnam, http://www.history.com/this-day-in-history/first-american-soldier-killed-in-vietnam (last visited May 25, 2013).
First American soldier killed in Vietnam. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/first-american-soldier-killed-in-vietnam. Accessed May 25, 2013.