SALT I negotiations begin. (2013). The History Channel website. Retrieved 9:21, May 22, 2013, from http://www.history.com/this-day-in-history/salt-i-negotiations-begin.
SALT I negotiations begin. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/salt-i-negotiations-begin [Accessed 22 May 2013].
“SALT I negotiations begin.” 2013. The History Channel website. May 22 2013, 9:21 http://www.history.com/this-day-in-history/salt-i-negotiations-begin.
“SALT I negotiations begin,” The History Channel website, 2013, http://www.history.com/this-day-in-history/salt-i-negotiations-begin [accessed May 22, 2013].
“SALT I negotiations begin,” The History Channel website, http://www.history.com/this-day-in-history/salt-i-negotiations-begin (accessed May 22, 2013).
SALT I negotiations begin [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/salt-i-negotiations-begin.
SALT I negotiations begin, http://www.history.com/this-day-in-history/salt-i-negotiations-begin (last visited May 22, 2013).
SALT I negotiations begin. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/salt-i-negotiations-begin. Accessed May 22, 2013.