Thousands protest the war in Vietnam. (2013). The History Channel website. Retrieved 2:32, May 21, 2013, from http://www.history.com/this-day-in-history/thousands-protest-the-war-in-vietnam.
Thousands protest the war in Vietnam. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/thousands-protest-the-war-in-vietnam [Accessed 21 May 2013].
“Thousands protest the war in Vietnam.” 2013. The History Channel website. May 21 2013, 2:32 http://www.history.com/this-day-in-history/thousands-protest-the-war-in-vietnam.
“Thousands protest the war in Vietnam,” The History Channel website, 2013, http://www.history.com/this-day-in-history/thousands-protest-the-war-in-vietnam [accessed May 21, 2013].
“Thousands protest the war in Vietnam,” The History Channel website, http://www.history.com/this-day-in-history/thousands-protest-the-war-in-vietnam (accessed May 21, 2013).
Thousands protest the war in Vietnam [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/this-day-in-history/thousands-protest-the-war-in-vietnam.
Thousands protest the war in Vietnam, http://www.history.com/this-day-in-history/thousands-protest-the-war-in-vietnam (last visited May 21, 2013).
Thousands protest the war in Vietnam. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/thousands-protest-the-war-in-vietnam. Accessed May 21, 2013.