O Brien James A, <br/><br/>
Introduction to informaion systems 
by James A O`Brien and George M Marakas 
 - 15th ed. 
 - New York  McGraw-Hill  2010 
 - 592P. 
<br/><br/><label>ISBN: </label>978-0-07-016708-7 
<br/><br/><label>Dewey Class. No.: </label>BV  / Q0