British spy sentenced to death. (2013). The History Channel website. Retrieved 3:20, May 24, 2013, from http://www.history.com/this-day-in-history/british-spy-sentenced-to-death.
British spy sentenced to death. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/british-spy-sentenced-to-death [Accessed 24 May 2013].
“British spy sentenced to death.” 2013. The History Channel website. May 24 2013, 3:20 http://www.history.com/this-day-in-history/british-spy-sentenced-to-death.
“British spy sentenced to death,” The History Channel website, 2013, http://www.history.com/this-day-in-history/british-spy-sentenced-to-death [accessed May 24, 2013].
“British spy sentenced to death,” The History Channel website, http://www.history.com/this-day-in-history/british-spy-sentenced-to-death (accessed May 24, 2013).
British spy sentenced to death [Internet]. The History Channel website; 2013 [cited 2013 May 24] Available from: http://www.history.com/this-day-in-history/british-spy-sentenced-to-death.
British spy sentenced to death, http://www.history.com/this-day-in-history/british-spy-sentenced-to-death (last visited May 24, 2013).
British spy sentenced to death. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/british-spy-sentenced-to-death. Accessed May 24, 2013.