Jacobsen, Alf R.
X-Craft versus Tirpitz: The Mystery of the Missing X5
Stroud, UK: Sutton Publishing Ltd, 2006
Heslop, W.N.
Xavier
London: Hart-Davis, 1970
Brazier, C.C.H.
XD Operations: British Secret Missions Denying Oil to the Nazis
Barnsley, UK: Pen and Sword Books Ltd, 2006
Brazieer, C.C.H.
XD Operations: Secret British Missions Denying Oil to the Nazis
Barnsley, UK: Pen and Sword Books Ltd, 2004
Dyer, George
XII Corps: Spearhead of Patton's Third Army
Baton Rouge: Army & Navy Publishing Co, 1947
Tascona, Bruce
XII Manitoba Dragoons, 1885-1991
Manitoba: The Regiment, 1991
US Army
XX Corps: Its History and Service in World War II
Osaka: Mainichi, 1951
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