German saboteurs executed in Washington. (2013). The History Channel website. Retrieved 2:33, May 25, 2013, from http://www.history.com/this-day-in-history/german-saboteurs-executed-in-washington.
German saboteurs executed in Washington. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/german-saboteurs-executed-in-washington [Accessed 25 May 2013].
“German saboteurs executed in Washington.” 2013. The History Channel website. May 25 2013, 2:33 http://www.history.com/this-day-in-history/german-saboteurs-executed-in-washington.
“German saboteurs executed in Washington,” The History Channel website, 2013, http://www.history.com/this-day-in-history/german-saboteurs-executed-in-washington [accessed May 25, 2013].
“German saboteurs executed in Washington,” The History Channel website, http://www.history.com/this-day-in-history/german-saboteurs-executed-in-washington (accessed May 25, 2013).
German saboteurs executed in Washington [Internet]. The History Channel website; 2013 [cited 2013 May 25] Available from: http://www.history.com/this-day-in-history/german-saboteurs-executed-in-washington.
German saboteurs executed in Washington, http://www.history.com/this-day-in-history/german-saboteurs-executed-in-washington (last visited May 25, 2013).
German saboteurs executed in Washington. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/german-saboteurs-executed-in-washington. Accessed May 25, 2013.