United States invades Grenada. (2013). The History Channel website. Retrieved 3:48, May 22, 2013, from http://www.history.com/this-day-in-history/united-states-invades-grenada.
United States invades Grenada. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/united-states-invades-grenada [Accessed 22 May 2013].
“United States invades Grenada.” 2013. The History Channel website. May 22 2013, 3:48 http://www.history.com/this-day-in-history/united-states-invades-grenada.
“United States invades Grenada,” The History Channel website, 2013, http://www.history.com/this-day-in-history/united-states-invades-grenada [accessed May 22, 2013].
“United States invades Grenada,” The History Channel website, http://www.history.com/this-day-in-history/united-states-invades-grenada (accessed May 22, 2013).
United States invades Grenada [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/united-states-invades-grenada.
United States invades Grenada, http://www.history.com/this-day-in-history/united-states-invades-grenada (last visited May 22, 2013).
United States invades Grenada. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/united-states-invades-grenada. Accessed May 22, 2013.