Principles of information security / 
Michael E. Whitman and Herbert J. Mattord 
 - 3rd edition. 
 - xxvi, 598 pages :  illustrations ;  24cm. 
<br/><br/> General.  Includes index 
<br/><br/><label>ISBN: </label>9780840031167 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures.<br/>Computer security.<br/>Information technology--Security measures.