Harper, Allen <br/><br/>
Gray hat hacking: the ethical hacker’s handbook 
by Allen Harper  
 - 3rd ed. 
 - New York   McGraw Hill  2011 
 - xxiv, 692 pages; 23 cm. 
<br/><br/> includes index  
<br/><br/><label>ISBN: </label>978-0-07-174255-9 
<br/><br/><label>Dewey Class. No.: </label>005.8/H23/2011