Kotler, Philip. <br/><br/>
Principles of marketing / 
Philip Kotler, Gary Armstrong. 
 - 14th ed. 
 - Boston :  Pearson,  2012. 
 - 637 p. 
<br/><br/><label>ISBN: </label>027375243X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing.