Tuchman, Barbara W. The zimmermann telegram / Barbara W. Tuchman - London : Constable, c1968 - viii, 244 p., [4] p. of plates ; 22 cm. Includes index Subjects--Personal Names: Zimmermann, Arthur, 1864-1940 Subjects--Topical Terms: European War, 1914-1918--Causes Dewey Class. No.: 940.3112