Luther defiant at Diet of Worms. (2013). The History Channel website. Retrieved 1:47, May 20, 2013, from http://www.history.com/this-day-in-history/luther-defiant-at-diet-of-worms.
Luther defiant at Diet of Worms. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/luther-defiant-at-diet-of-worms [Accessed 20 May 2013].
“Luther defiant at Diet of Worms.” 2013. The History Channel website. May 20 2013, 1:47 http://www.history.com/this-day-in-history/luther-defiant-at-diet-of-worms.
“Luther defiant at Diet of Worms,” The History Channel website, 2013, http://www.history.com/this-day-in-history/luther-defiant-at-diet-of-worms [accessed May 20, 2013].
“Luther defiant at Diet of Worms,” The History Channel website, http://www.history.com/this-day-in-history/luther-defiant-at-diet-of-worms (accessed May 20, 2013).
Luther defiant at Diet of Worms [Internet]. The History Channel website; 2013 [cited 2013 May 20] Available from: http://www.history.com/this-day-in-history/luther-defiant-at-diet-of-worms.
Luther defiant at Diet of Worms, http://www.history.com/this-day-in-history/luther-defiant-at-diet-of-worms (last visited May 20, 2013).
Luther defiant at Diet of Worms. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/luther-defiant-at-diet-of-worms. Accessed May 20, 2013.