Washington informs Congress of espionage. (2013). The History Channel website. Retrieved 7:33, June 19, 2013, from http://www.history.com/this-day-in-history/washington-informs-congress-of-espionage.
Washington informs Congress of espionage. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/washington-informs-congress-of-espionage [Accessed 19 Jun 2013].
“Washington informs Congress of espionage.” 2013. The History Channel website. Jun 19 2013, 7:33 http://www.history.com/this-day-in-history/washington-informs-congress-of-espionage.
“Washington informs Congress of espionage,” The History Channel website, 2013, http://www.history.com/this-day-in-history/washington-informs-congress-of-espionage [accessed Jun 19, 2013].
“Washington informs Congress of espionage,” The History Channel website, http://www.history.com/this-day-in-history/washington-informs-congress-of-espionage (accessed Jun 19, 2013).
Washington informs Congress of espionage [Internet]. The History Channel website; 2013 [cited 2013 Jun 19] Available from: http://www.history.com/this-day-in-history/washington-informs-congress-of-espionage.
Washington informs Congress of espionage, http://www.history.com/this-day-in-history/washington-informs-congress-of-espionage (last visited Jun 19, 2013).
Washington informs Congress of espionage. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/washington-informs-congress-of-espionage. Accessed Jun 19, 2013.