Organization of American States established. (2013). The History Channel website. Retrieved 3:07, June 19, 2013, from http://www.history.com/this-day-in-history/organization-of-american-states-established.
Organization of American States established. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/organization-of-american-states-established [Accessed 19 Jun 2013].
“Organization of American States established.” 2013. The History Channel website. Jun 19 2013, 3:07 http://www.history.com/this-day-in-history/organization-of-american-states-established.
“Organization of American States established,” The History Channel website, 2013, http://www.history.com/this-day-in-history/organization-of-american-states-established [accessed Jun 19, 2013].
“Organization of American States established,” The History Channel website, http://www.history.com/this-day-in-history/organization-of-american-states-established (accessed Jun 19, 2013).
Organization of American States established [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/this-day-in-history/organization-of-american-states-established.
Organization of American States established, http://www.history.com/this-day-in-history/organization-of-american-states-established (last visited Jun 19, 2013).
Organization of American States established. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/organization-of-american-states-established. Accessed Jun 19, 2013.