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World War I for kids : a history with 21 activities
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Final years of World War I
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At battle in World War I : an interactive battlefield adventure
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WWI the complete story
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They shall not grow old
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Goddamn this war!
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Weapons of World War I
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The first world war; a photographic history
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What was World War I?
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Everything World War I
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World War I : a primary source history
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World War I
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World War I
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First World War
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The war to end all wars : World War I
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50 things you should know about the first World War
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World War I : a country-by-country guide. Vol. 1, Australia to Italy
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World War I : a country-by-country guide. Vol 2, Japan to the United States
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Secret warriors : the spies, scientists and code breakers of World War I
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Treaties, trenches, mud, and blood
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Castles of steel : Britain, Germany, and the winning of the Great War at sea
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Eleventh month, eleventh day, eleventh hour : Armistice Day, 1918, World War I and its violent climax
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A stillness heard round the world : the end of the Great War, November 1918
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Lusitania : an epic tragedy