Gold, Steve. <br/><br/>
Hugo Cornwall's new hacker's handbook / 
extensively revised and updated by Steve Gold. 
 - 4th ed. /  by Steve Gold. 
 - London :  Century,  1989. 
 - xiii, 194 p. ;  25 cm. 
<br/><br/> Previous ed. published as: The hacker's handbook III /by Hugo Cornwall. 1988.  Includes index. 
<br/><br/><label>ISBN: </label>0712634541 (pbk.)  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers--Access control.