Bridge collapses in Ohio. (2013). The History Channel website. Retrieved 1:46, May 26, 2013, from http://www.history.com/this-day-in-history/bridge-collapses-in-ohio.
Bridge collapses in Ohio. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/bridge-collapses-in-ohio [Accessed 26 May 2013].
“Bridge collapses in Ohio.” 2013. The History Channel website. May 26 2013, 1:46 http://www.history.com/this-day-in-history/bridge-collapses-in-ohio.
“Bridge collapses in Ohio,” The History Channel website, 2013, http://www.history.com/this-day-in-history/bridge-collapses-in-ohio [accessed May 26, 2013].
“Bridge collapses in Ohio,” The History Channel website, http://www.history.com/this-day-in-history/bridge-collapses-in-ohio (accessed May 26, 2013).
Bridge collapses in Ohio [Internet]. The History Channel website; 2013 [cited 2013 May 26] Available from: http://www.history.com/this-day-in-history/bridge-collapses-in-ohio.
Bridge collapses in Ohio, http://www.history.com/this-day-in-history/bridge-collapses-in-ohio (last visited May 26, 2013).
Bridge collapses in Ohio. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/bridge-collapses-in-ohio. Accessed May 26, 2013.