PHILIP  KOTLER  GARYARMSTRONG <br/><br/>
PRIMCIPLES OF MARKETING NINTH EDITION 

 - NEW DELHI  PRENTICE-HALL OF INDIA  2001 
<br/><br/><label>ISBN: </label>81-203-1839-0 
<br/><br/><label>Dewey Class. No.: </label>658.8  / KOT/P