Earthquake exposes weak infrastructure. (2013). The History Channel website. Retrieved 1:35, May 22, 2013, from http://www.history.com/this-day-in-history/earthquake-exposes-weak-infrastructure.
Earthquake exposes weak infrastructure. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/earthquake-exposes-weak-infrastructure [Accessed 22 May 2013].
“Earthquake exposes weak infrastructure.” 2013. The History Channel website. May 22 2013, 1:35 http://www.history.com/this-day-in-history/earthquake-exposes-weak-infrastructure.
“Earthquake exposes weak infrastructure,” The History Channel website, 2013, http://www.history.com/this-day-in-history/earthquake-exposes-weak-infrastructure [accessed May 22, 2013].
“Earthquake exposes weak infrastructure,” The History Channel website, http://www.history.com/this-day-in-history/earthquake-exposes-weak-infrastructure (accessed May 22, 2013).
Earthquake exposes weak infrastructure [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/earthquake-exposes-weak-infrastructure.
Earthquake exposes weak infrastructure, http://www.history.com/this-day-in-history/earthquake-exposes-weak-infrastructure (last visited May 22, 2013).
Earthquake exposes weak infrastructure. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/earthquake-exposes-weak-infrastructure. Accessed May 22, 2013.