Books about World War, 1914-1918 -- Peace
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An Inquiry into the Nature of Peace and the Terms of Its Perpetuation
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In the Fourth Year: Anticipations of a World Peace
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Towards an enduring peace : A symposium of peace proposals and programs 1914-1916
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The Pan-German Programme
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A nagy katasztrófa: 1914-1920 (Hungarian)
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Ten years after : a reminder
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La tragedia della pace : Da Versailles alla Ruhr (Italian)