U.N. Charter is signed. (2013). The History Channel website. Retrieved 9:24, May 18, 2013, from http://www.history.com/this-day-in-history/un-charter-is-signed.
U.N. Charter is signed. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/un-charter-is-signed [Accessed 18 May 2013].
“U.N. Charter is signed.” 2013. The History Channel website. May 18 2013, 9:24 http://www.history.com/this-day-in-history/un-charter-is-signed.
“U.N. Charter is signed,” The History Channel website, 2013, http://www.history.com/this-day-in-history/un-charter-is-signed [accessed May 18, 2013].
“U.N. Charter is signed,” The History Channel website, http://www.history.com/this-day-in-history/un-charter-is-signed (accessed May 18, 2013).
U.N. Charter is signed [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/un-charter-is-signed.
U.N. Charter is signed, http://www.history.com/this-day-in-history/un-charter-is-signed (last visited May 18, 2013).
U.N. Charter is signed. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/un-charter-is-signed. Accessed May 18, 2013.