Volume 25 Encyclopedia Britannica -1960 Publication
Verdun, Illustrated Historical Guide (ca. 1933) - H. Fremont and Sons
Verdun, Guide Historique Illustre (ca. 1933) - H. Fremont and Sons
Verdun and Its Battle Fields - H. Fremont and Sons
Foch, Man of Orleans - B. H. Liddel Hart
Strategy - B. H. Liddel Hart
Outlines of the World's Military History - W. A. Mitchell
A Political and Cultural History of Modern Europe - C. J. H. Hayes
Europe in the 19th and 20th Centuries (1789-1939) - A. J. Grant & H. W. V. Temperley
A Short History of WWI - Brig. Gen. Sir James E. Edmonds