North Vietnam announces it will not be intimidated by U.S. bombing. (2013). The History Channel website. Retrieved 9:17, May 21, 2013, from http://www.history.com/this-day-in-history/north-vietnam-announces-it-will-not-be-intimidated-by-us-bombing.
North Vietnam announces it will not be intimidated by U.S. bombing. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/north-vietnam-announces-it-will-not-be-intimidated-by-us-bombing [Accessed 21 May 2013].
“North Vietnam announces it will not be intimidated by U.S. bombing.” 2013. The History Channel website. May 21 2013, 9:17 http://www.history.com/this-day-in-history/north-vietnam-announces-it-will-not-be-intimidated-by-us-bombing.
“North Vietnam announces it will not be intimidated by U.S. bombing,” The History Channel website, 2013, http://www.history.com/this-day-in-history/north-vietnam-announces-it-will-not-be-intimidated-by-us-bombing [accessed May 21, 2013].
“North Vietnam announces it will not be intimidated by U.S. bombing,” The History Channel website, http://www.history.com/this-day-in-history/north-vietnam-announces-it-will-not-be-intimidated-by-us-bombing (accessed May 21, 2013).
North Vietnam announces it will not be intimidated by U.S. bombing [Internet]. The History Channel website; 2013 [cited 2013 May 21] Available from: http://www.history.com/this-day-in-history/north-vietnam-announces-it-will-not-be-intimidated-by-us-bombing.
North Vietnam announces it will not be intimidated by U.S. bombing, http://www.history.com/this-day-in-history/north-vietnam-announces-it-will-not-be-intimidated-by-us-bombing (last visited May 21, 2013).
North Vietnam announces it will not be intimidated by U.S. bombing. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/north-vietnam-announces-it-will-not-be-intimidated-by-us-bombing. Accessed May 21, 2013.