Brown, Dan, <br/><br/>
Digital fortress / 
Dan Brown. 
 - New York,   St. Martin's Paperbacks,   2004. 
 - 510 Pages,  18 cm. 
<br/><br/> Gratis 
<br/><br/><label>ISBN: </label>9780552161251 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intelligence officers--Fiction.<br/>Computer security--Fiction.<br/>Cryptographers--Fiction.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Suspense fiction.
<br/><br/><label>Dewey Class. No.: </label>813.54 BRO