Fighting intensifies with North Vietnamese offensive. (2013). The History Channel website. Retrieved 12:42, May 25, 2013, from http://www.history.com/this-day-in-history/fighting-intensifies-with-north-vietnamese-offensive.
Fighting intensifies with North Vietnamese offensive. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/fighting-intensifies-with-north-vietnamese-offensive [Accessed 25 May 2013].
“Fighting intensifies with North Vietnamese offensive.” 2013. The History Channel website. May 25 2013, 12:42 http://www.history.com/this-day-in-history/fighting-intensifies-with-north-vietnamese-offensive.
“Fighting intensifies with North Vietnamese offensive,” The History Channel website, 2013, http://www.history.com/this-day-in-history/fighting-intensifies-with-north-vietnamese-offensive [accessed May 25, 2013].
“Fighting intensifies with North Vietnamese offensive,” The History Channel website, http://www.history.com/this-day-in-history/fighting-intensifies-with-north-vietnamese-offensive (accessed May 25, 2013).
Fighting intensifies with North Vietnamese offensive [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/fighting-intensifies-with-north-vietnamese-offensive.
Fighting intensifies with North Vietnamese offensive, http://www.history.com/this-day-in-history/fighting-intensifies-with-north-vietnamese-offensive (last visited May 25, 2013).
Fighting intensifies with North Vietnamese offensive. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/fighting-intensifies-with-north-vietnamese-offensive. Accessed May 25, 2013.