Commuter trains collide in New York City. (2013). The History Channel website. Retrieved 12:54, May 23, 2013, from http://www.history.com/this-day-in-history/commuter-trains-collide-in-new-york-city.
Commuter trains collide in New York City. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/commuter-trains-collide-in-new-york-city [Accessed 23 May 2013].
“Commuter trains collide in New York City.” 2013. The History Channel website. May 23 2013, 12:54 http://www.history.com/this-day-in-history/commuter-trains-collide-in-new-york-city.
“Commuter trains collide in New York City,” The History Channel website, 2013, http://www.history.com/this-day-in-history/commuter-trains-collide-in-new-york-city [accessed May 23, 2013].
“Commuter trains collide in New York City,” The History Channel website, http://www.history.com/this-day-in-history/commuter-trains-collide-in-new-york-city (accessed May 23, 2013).
Commuter trains collide in New York City [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/commuter-trains-collide-in-new-york-city.
Commuter trains collide in New York City, http://www.history.com/this-day-in-history/commuter-trains-collide-in-new-york-city (last visited May 23, 2013).
Commuter trains collide in New York City. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/commuter-trains-collide-in-new-york-city. Accessed May 23, 2013.