Germans launch attack on British lines in Ypres Salient. (2013). The History Channel website. Retrieved 11:11, May 20, 2013, from http://www.history.com/this-day-in-history/germans-launch-attack-on-british-lines-in-ypres-salient.
Germans launch attack on British lines in Ypres Salient. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/germans-launch-attack-on-british-lines-in-ypres-salient [Accessed 20 May 2013].
“Germans launch attack on British lines in Ypres Salient.” 2013. The History Channel website. May 20 2013, 11:11 http://www.history.com/this-day-in-history/germans-launch-attack-on-british-lines-in-ypres-salient.
“Germans launch attack on British lines in Ypres Salient,” The History Channel website, 2013, http://www.history.com/this-day-in-history/germans-launch-attack-on-british-lines-in-ypres-salient [accessed May 20, 2013].
“Germans launch attack on British lines in Ypres Salient,” The History Channel website, http://www.history.com/this-day-in-history/germans-launch-attack-on-british-lines-in-ypres-salient (accessed May 20, 2013).
Germans launch attack on British lines in Ypres Salient [Internet]. The History Channel website; 2013 [cited 2013 May 20] Available from: http://www.history.com/this-day-in-history/germans-launch-attack-on-british-lines-in-ypres-salient.
Germans launch attack on British lines in Ypres Salient, http://www.history.com/this-day-in-history/germans-launch-attack-on-british-lines-in-ypres-salient (last visited May 20, 2013).
Germans launch attack on British lines in Ypres Salient. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/germans-launch-attack-on-british-lines-in-ypres-salient. Accessed May 20, 2013.