Martel, Gordon Origins of the first world war/ Gordon Martel - Rev. 3rd ed. - Harlow, England : Pearson Longman, 2008. - xxvii, 160 p. : ill. Includes bibliographical references and index ISBN: 9781405874311 Subjects--Topical Terms: World War, 1914-1918 - Causes LC Class. No.: D 511 MAR 2008