William Penn was a Quaker religious leader who oversaw the founding of the Commonwealth of Pennsylvania.
William Penn. (2013). The Biography Channel website. Retrieved 05:43, Jun 20, 2013, from http://www.biography.com/people/william-penn-9436869.
William Penn. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/william-penn-9436869 [Accessed 20 Jun 2013].
"William Penn." 2013. The Biography Channel website. Jun 20 2013, 05:43 http://www.biography.com/people/william-penn-9436869.
"William Penn," The Biography Channel website, 2013, http://www.biography.com/people/william-penn-9436869 [accessed Jun 20, 2013].
"William Penn," The Biography Channel website, http://www.biography.com/people/william-penn-9436869 (accessed Jun 20, 2013).
William Penn [Internet]. The Biography Channel website; 2013 [cited 2013 Jun 20] Available from: http://www.biography.com/people/william-penn-9436869.
William Penn, http://www.biography.com/people/william-penn-9436869 (last visited Jun 20, 2013).
William Penn. The Biography Channel website. 2013. Available at: http://www.biography.com/people/william-penn-9436869. Accessed Jun 20, 2013.