The Queen of Poisoners takes her toll. (2013). The History Channel website. Retrieved 8:47, May 24, 2013, from http://www.history.com/this-day-in-history/the-queen-of-poisoners-takes-her-toll.
The Queen of Poisoners takes her toll. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/the-queen-of-poisoners-takes-her-toll [Accessed 24 May 2013].
“The Queen of Poisoners takes her toll.” 2013. The History Channel website. May 24 2013, 8:47 http://www.history.com/this-day-in-history/the-queen-of-poisoners-takes-her-toll.
“The Queen of Poisoners takes her toll,” The History Channel website, 2013, http://www.history.com/this-day-in-history/the-queen-of-poisoners-takes-her-toll [accessed May 24, 2013].
“The Queen of Poisoners takes her toll,” The History Channel website, http://www.history.com/this-day-in-history/the-queen-of-poisoners-takes-her-toll (accessed May 24, 2013).
The Queen of Poisoners takes her toll [Internet]. The History Channel website; 2013 [cited 2013 May 24] Available from: http://www.history.com/this-day-in-history/the-queen-of-poisoners-takes-her-toll.
The Queen of Poisoners takes her toll, http://www.history.com/this-day-in-history/the-queen-of-poisoners-takes-her-toll (last visited May 24, 2013).
The Queen of Poisoners takes her toll. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/the-queen-of-poisoners-takes-her-toll. Accessed May 24, 2013.