Austrian investigation into archduke's assassination concludes. (2013). The History Channel website. Retrieved 5:28, May 18, 2013, from http://www.history.com/this-day-in-history/austrian-investigation-into-archdukes-assassination-concludes.
Austrian investigation into archduke's assassination concludes. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/austrian-investigation-into-archdukes-assassination-concludes [Accessed 18 May 2013].
“Austrian investigation into archduke's assassination concludes.” 2013. The History Channel website. May 18 2013, 5:28 http://www.history.com/this-day-in-history/austrian-investigation-into-archdukes-assassination-concludes.
“Austrian investigation into archduke's assassination concludes,” The History Channel website, 2013, http://www.history.com/this-day-in-history/austrian-investigation-into-archdukes-assassination-concludes [accessed May 18, 2013].
“Austrian investigation into archduke's assassination concludes,” The History Channel website, http://www.history.com/this-day-in-history/austrian-investigation-into-archdukes-assassination-concludes (accessed May 18, 2013).
Austrian investigation into archduke's assassination concludes [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/austrian-investigation-into-archdukes-assassination-concludes.
Austrian investigation into archduke's assassination concludes, http://www.history.com/this-day-in-history/austrian-investigation-into-archdukes-assassination-concludes (last visited May 18, 2013).
Austrian investigation into archduke's assassination concludes. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/austrian-investigation-into-archdukes-assassination-concludes. Accessed May 18, 2013.