Ships explode in Canadian harbor. (2013). The History Channel website. Retrieved 3:54, May 25, 2013, from http://www.history.com/this-day-in-history/ships-explode-in-canadian-harbor.
Ships explode in Canadian harbor. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/ships-explode-in-canadian-harbor [Accessed 25 May 2013].
“Ships explode in Canadian harbor.” 2013. The History Channel website. May 25 2013, 3:54 http://www.history.com/this-day-in-history/ships-explode-in-canadian-harbor.
“Ships explode in Canadian harbor,” The History Channel website, 2013, http://www.history.com/this-day-in-history/ships-explode-in-canadian-harbor [accessed May 25, 2013].
“Ships explode in Canadian harbor,” The History Channel website, http://www.history.com/this-day-in-history/ships-explode-in-canadian-harbor (accessed May 25, 2013).
Ships explode in Canadian harbor [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/ships-explode-in-canadian-harbor.
Ships explode in Canadian harbor, http://www.history.com/this-day-in-history/ships-explode-in-canadian-harbor (last visited May 25, 2013).
Ships explode in Canadian harbor. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/ships-explode-in-canadian-harbor. Accessed May 25, 2013.