Garfinkel, Simson & Wood, Patrick H. <br/><br/>
Practical Unix and internet security 

 - O'Reilly & Associates,Inc., Bonn  1996 
 - xxix,971 
<br/><br/><label>ISBN: </label>1-56592-148-8 
<br/><br/><label>Dewey Class. No.: </label>001.61 Gar/Gen