Paxton, Robert O. Europe in the twentieth century / Robert O. Paxton, Julie Hessler. - 5th ed. - Boston, MA : Wadsworth/Cengage Learning, 2012. - xxiv, 721 p. : ill. maps ; 23 cm. Includes bibliographical references and index. ISBN: 9780495913191 RM417.77 0495913197 Subjects--Geographic Terms: Europe--History--20th century.