The Battle of the Bismarck Sea. (2013). The History Channel website. Retrieved 5:39, May 18, 2013, from http://www.history.com/this-day-in-history/the-battle-of-the-bismarck-sea.
The Battle of the Bismarck Sea. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/the-battle-of-the-bismarck-sea [Accessed 18 May 2013].
“The Battle of the Bismarck Sea.” 2013. The History Channel website. May 18 2013, 5:39 http://www.history.com/this-day-in-history/the-battle-of-the-bismarck-sea.
“The Battle of the Bismarck Sea,” The History Channel website, 2013, http://www.history.com/this-day-in-history/the-battle-of-the-bismarck-sea [accessed May 18, 2013].
“The Battle of the Bismarck Sea,” The History Channel website, http://www.history.com/this-day-in-history/the-battle-of-the-bismarck-sea (accessed May 18, 2013).
The Battle of the Bismarck Sea [Internet]. The History Channel website; 2013 [cited 2013 May 18] Available from: http://www.history.com/this-day-in-history/the-battle-of-the-bismarck-sea.
The Battle of the Bismarck Sea, http://www.history.com/this-day-in-history/the-battle-of-the-bismarck-sea (last visited May 18, 2013).
The Battle of the Bismarck Sea. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/the-battle-of-the-bismarck-sea. Accessed May 18, 2013.