"World War I." Wikipedia, the Free Encyclopedia. Wikipedia, 15 Apr. 2011. Web. 15 Apr. 2011. http://en.wikipedia.org/wiki/World_War_I.
"World War 1 Color Photos." World War One Color Photos - Color Photos from World War I. Poiema Deisgn. Web. 15 Apr. 2011. http://www.worldwaronecolorphotos.com/.
Hanlon, Mike. "World War 1 - Trenches on the Web." World War I - Trenches on the Web. Great War Society, 3 June 2004. Web. 15 Apr. 2011. http://www.worldwar1.com/.
