North Vietnam and People's Republic of China sign aid agreement. (2013). The History Channel website. Retrieved 6:51, June 19, 2013, from http://www.history.com/this-day-in-history/north-vietnam-and-peoples-republic-of-china-sign-aid-agreement.
North Vietnam and People's Republic of China sign aid agreement. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/north-vietnam-and-peoples-republic-of-china-sign-aid-agreement [Accessed 19 Jun 2013].
“North Vietnam and People's Republic of China sign aid agreement.” 2013. The History Channel website. Jun 19 2013, 6:51 http://www.history.com/this-day-in-history/north-vietnam-and-peoples-republic-of-china-sign-aid-agreement.
“North Vietnam and People's Republic of China sign aid agreement,” The History Channel website, 2013, http://www.history.com/this-day-in-history/north-vietnam-and-peoples-republic-of-china-sign-aid-agreement [accessed Jun 19, 2013].
“North Vietnam and People's Republic of China sign aid agreement,” The History Channel website, http://www.history.com/this-day-in-history/north-vietnam-and-peoples-republic-of-china-sign-aid-agreement (accessed Jun 19, 2013).
North Vietnam and People's Republic of China sign aid agreement [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/this-day-in-history/north-vietnam-and-peoples-republic-of-china-sign-aid-agreement.
North Vietnam and People's Republic of China sign aid agreement, http://www.history.com/this-day-in-history/north-vietnam-and-peoples-republic-of-china-sign-aid-agreement (last visited Jun 19, 2013).
North Vietnam and People's Republic of China sign aid agreement. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/north-vietnam-and-peoples-republic-of-china-sign-aid-agreement. Accessed Jun 19, 2013.