Stallings, William <br/><br/>
Network security essentials :  applications and standards / 
William Stallings 
 - 6th ed. 
 - Upper Saddle River, NJ :  Pearson,  2017 
 - xvi, 445 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780134527338 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures<br/>Computer security