Allied forces break through the Hindenburg Line . (2013). The History Channel website. Retrieved 9:22, May 22, 2013, from http://www.history.com/this-day-in-history/allied-forces-break-through-the-hindenburg-line.
Allied forces break through the Hindenburg Line . [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/allied-forces-break-through-the-hindenburg-line [Accessed 22 May 2013].
“Allied forces break through the Hindenburg Line .” 2013. The History Channel website. May 22 2013, 9:22 http://www.history.com/this-day-in-history/allied-forces-break-through-the-hindenburg-line.
“Allied forces break through the Hindenburg Line ,” The History Channel website, 2013, http://www.history.com/this-day-in-history/allied-forces-break-through-the-hindenburg-line [accessed May 22, 2013].
“Allied forces break through the Hindenburg Line ,” The History Channel website, http://www.history.com/this-day-in-history/allied-forces-break-through-the-hindenburg-line (accessed May 22, 2013).
Allied forces break through the Hindenburg Line [Internet]. The History Channel website; 2013 [cited 2013 May 22] Available from: http://www.history.com/this-day-in-history/allied-forces-break-through-the-hindenburg-line.
Allied forces break through the Hindenburg Line , http://www.history.com/this-day-in-history/allied-forces-break-through-the-hindenburg-line (last visited May 22, 2013).
Allied forces break through the Hindenburg Line . The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/allied-forces-break-through-the-hindenburg-line. Accessed May 22, 2013.