Principles of Information Security/  English. 
Michael E. Whitman. 
 - 4th Ed. 
 - India:  Cengage Learning India Private Limited,  2012. 
 - xxix, 619p.:  ill;  24cm. 
<br/><br/><label>ISBN: </label>9788131516454 
<br/><br/><label>Dewey Class. No.: </label>681.14  / WHI