North Vietnamese regulars are fighting in South Vietnam. (2013). The History Channel website. Retrieved 4:00, May 22, 2013, from http://www.history.com/this-day-in-history/north-vietnamese-regulars-are-fighting-in-south-vietnam.
North Vietnamese regulars are fighting in South Vietnam. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/north-vietnamese-regulars-are-fighting-in-south-vietnam [Accessed 22 May 2013].
“North Vietnamese regulars are fighting in South Vietnam.” 2013. The History Channel website. May 22 2013, 4:00 http://www.history.com/this-day-in-history/north-vietnamese-regulars-are-fighting-in-south-vietnam.
“North Vietnamese regulars are fighting in South Vietnam,” The History Channel website, 2013, http://www.history.com/this-day-in-history/north-vietnamese-regulars-are-fighting-in-south-vietnam [accessed May 22, 2013].
“North Vietnamese regulars are fighting in South Vietnam,” The History Channel website, http://www.history.com/this-day-in-history/north-vietnamese-regulars-are-fighting-in-south-vietnam (accessed May 22, 2013).
North Vietnamese regulars are fighting in South Vietnam [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/north-vietnamese-regulars-are-fighting-in-south-vietnam.
North Vietnamese regulars are fighting in South Vietnam, http://www.history.com/this-day-in-history/north-vietnamese-regulars-are-fighting-in-south-vietnam (last visited May 22, 2013).
North Vietnamese regulars are fighting in South Vietnam. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/north-vietnamese-regulars-are-fighting-in-south-vietnam. Accessed May 22, 2013.