Trotsky assassinated in Mexico. (2013). The History Channel website. Retrieved 5:47, May 25, 2013, from http://www.history.com/this-day-in-history/trotsky-assassinated-in-mexico.
Trotsky assassinated in Mexico. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/trotsky-assassinated-in-mexico [Accessed 25 May 2013].
“Trotsky assassinated in Mexico.” 2013. The History Channel website. May 25 2013, 5:47 http://www.history.com/this-day-in-history/trotsky-assassinated-in-mexico.
“Trotsky assassinated in Mexico,” The History Channel website, 2013, http://www.history.com/this-day-in-history/trotsky-assassinated-in-mexico [accessed May 25, 2013].
“Trotsky assassinated in Mexico,” The History Channel website, http://www.history.com/this-day-in-history/trotsky-assassinated-in-mexico (accessed May 25, 2013).
Trotsky assassinated in Mexico [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/trotsky-assassinated-in-mexico.
Trotsky assassinated in Mexico, http://www.history.com/this-day-in-history/trotsky-assassinated-in-mexico (last visited May 25, 2013).
Trotsky assassinated in Mexico. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/trotsky-assassinated-in-mexico. Accessed May 25, 2013.