Time Life Books <br/><br/>
Understanding Computers  Computer security 

 - Alexandria  Time Life 
 - 128 p.  ill. 
<br/><br/><label>ISBN: </label>0809475669 (10) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers
<br/><br/><label>Dewey Class. No.: </label>001.6  / U52