American soldier Harry Butters killed in the Battle of the Somme. (2013). The History Channel website. Retrieved 12:17, May 23, 2013, from http://www.history.com/this-day-in-history/american-soldier-harry-butters-killed-in-the-battle-of-the-somme.
American soldier Harry Butters killed in the Battle of the Somme. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/american-soldier-harry-butters-killed-in-the-battle-of-the-somme [Accessed 23 May 2013].
“American soldier Harry Butters killed in the Battle of the Somme.” 2013. The History Channel website. May 23 2013, 12:17 http://www.history.com/this-day-in-history/american-soldier-harry-butters-killed-in-the-battle-of-the-somme.
“American soldier Harry Butters killed in the Battle of the Somme,” The History Channel website, 2013, http://www.history.com/this-day-in-history/american-soldier-harry-butters-killed-in-the-battle-of-the-somme [accessed May 23, 2013].
“American soldier Harry Butters killed in the Battle of the Somme,” The History Channel website, http://www.history.com/this-day-in-history/american-soldier-harry-butters-killed-in-the-battle-of-the-somme (accessed May 23, 2013).
American soldier Harry Butters killed in the Battle of the Somme [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/american-soldier-harry-butters-killed-in-the-battle-of-the-somme.
American soldier Harry Butters killed in the Battle of the Somme, http://www.history.com/this-day-in-history/american-soldier-harry-butters-killed-in-the-battle-of-the-somme (last visited May 23, 2013).
American soldier Harry Butters killed in the Battle of the Somme. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/american-soldier-harry-butters-killed-in-the-battle-of-the-somme. Accessed May 23, 2013.