LOTS OF 7 BOOKS ABOUT WORLD WAR 1 & HISTORY OF 20TH CENTURY

Lyn Macdonald, They Called It Passchendaele, Penguin Books, 1993
Gary Sheffield, Forgotton Victory, The First World War: Myths & Realities, Rewiev Publ.2002
Ajp Taylor, The First World War, An Illustrated History, Penguin Books, 1966
Keith Robbins, The First World War, Oxford University Press, 1993
Richard Hough, The Great War at Sea 1914-1918, Oxford University Press, 1989
Sally Harris, Out of Control, British Foreign Policy and the Union of Democratic Control, 1914-1918, The University of Hull Press, 1996
William Van der Kloot, World War 1 Fact Book, 2010