The Liberty Bell rings. (2013). The History Channel website. Retrieved 1:27, May 20, 2013, from http://www.history.com/this-day-in-history/the-liberty-bell-rings.
The Liberty Bell rings. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/the-liberty-bell-rings [Accessed 20 May 2013].
“The Liberty Bell rings.” 2013. The History Channel website. May 20 2013, 1:27 http://www.history.com/this-day-in-history/the-liberty-bell-rings.
“The Liberty Bell rings,” The History Channel website, 2013, http://www.history.com/this-day-in-history/the-liberty-bell-rings [accessed May 20, 2013].
“The Liberty Bell rings,” The History Channel website, http://www.history.com/this-day-in-history/the-liberty-bell-rings (accessed May 20, 2013).
The Liberty Bell rings [Internet]. The History Channel website; 2013 [cited 2013 May 20] Available from: http://www.history.com/this-day-in-history/the-liberty-bell-rings.
The Liberty Bell rings, http://www.history.com/this-day-in-history/the-liberty-bell-rings (last visited May 20, 2013).
The Liberty Bell rings. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/the-liberty-bell-rings. Accessed May 20, 2013.