Russell, Francis <br/><br/>
The secret war /  
Francis Russell 
 - Virginia :   Time Life Books,  1981 
 - 208 p 
<br/><br/>Historia 
<br/><br/><label>ISBN: </label>0809425483 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Guerra mundial, 1939-1945 ---Servicio secreto<br/>Guerra mundial, 1939-1945 ---Criptografía
<br/><br/><label>Dewey Class. No.: </label>940.5485 R959s 1981