Tuchman, Barbara Wetheim <br/><br/>
The Zimmerman telegram / 
Barbara W. Tuchman. 
 - New York :  Ballantine Books,  c1985. 
 - xii, 244 p. 
<br/><br/> Includes sources, notes and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>European war, 1914-1918--Sources<br/>Zimmerman, Arthur, 1864-1970