Rohl, John Charles Gerald Delusion or design? : the testimony of two German diplomats / edited and introduced by John Rohl, with a foreword by Hugh Trevor-Roper - New York : St. Martin's Press, 1973 - 143 p. ; 23 cm. Includes bibliographical references English and German LCCN: 73-077735 Subjects--Topical Terms: World War, 1914-1918--Causes