Bamford, James. <br/><br/>
Body of secrets :  anatomy of the ultra-secret National Security Agency : from the Cold War through the dawn of a new century / 
James Bamford. 
 - New York :  Doubleday,  2001. 
 - 721 p. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0385499078  RM134.90 
<br/><br/><label>LCCN: </label>00-058920 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United States. National Security Agency --History.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic intelligence--History.--United States<br/>Cryptography--History--United States