U.S. policymakers express optimism. (2013). The History Channel website. Retrieved 4:49, June 18, 2013, from http://www.history.com/this-day-in-history/us-policymakers-express-optimism.
U.S. policymakers express optimism. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/us-policymakers-express-optimism [Accessed 18 Jun 2013].
“U.S. policymakers express optimism.” 2013. The History Channel website. Jun 18 2013, 4:49 http://www.history.com/this-day-in-history/us-policymakers-express-optimism.
“U.S. policymakers express optimism,” The History Channel website, 2013, http://www.history.com/this-day-in-history/us-policymakers-express-optimism [accessed Jun 18, 2013].
“U.S. policymakers express optimism,” The History Channel website, http://www.history.com/this-day-in-history/us-policymakers-express-optimism (accessed Jun 18, 2013).
U.S. policymakers express optimism [Internet]. The History Channel website; 2013 [cited 2013 Jun 18] Available from: http://www.history.com/this-day-in-history/us-policymakers-express-optimism.
U.S. policymakers express optimism, http://www.history.com/this-day-in-history/us-policymakers-express-optimism (last visited Jun 18, 2013).
U.S. policymakers express optimism. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/us-policymakers-express-optimism. Accessed Jun 18, 2013.