North Vietnamese begin preparations for offensive. (2013). The History Channel website. Retrieved 1:06, June 19, 2013, from http://www.history.com/this-day-in-history/north-vietnamese-begin-preparations-for-offensive.
North Vietnamese begin preparations for offensive. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/north-vietnamese-begin-preparations-for-offensive [Accessed 19 Jun 2013].
“North Vietnamese begin preparations for offensive.” 2013. The History Channel website. Jun 19 2013, 1:06 http://www.history.com/this-day-in-history/north-vietnamese-begin-preparations-for-offensive.
“North Vietnamese begin preparations for offensive,” The History Channel website, 2013, http://www.history.com/this-day-in-history/north-vietnamese-begin-preparations-for-offensive [accessed Jun 19, 2013].
“North Vietnamese begin preparations for offensive,” The History Channel website, http://www.history.com/this-day-in-history/north-vietnamese-begin-preparations-for-offensive (accessed Jun 19, 2013).
North Vietnamese begin preparations for offensive [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/this-day-in-history/north-vietnamese-begin-preparations-for-offensive.
North Vietnamese begin preparations for offensive, http://www.history.com/this-day-in-history/north-vietnamese-begin-preparations-for-offensive (last visited Jun 19, 2013).
North Vietnamese begin preparations for offensive. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/north-vietnamese-begin-preparations-for-offensive. Accessed Jun 19, 2013.