Kotler, Philip. <br/><br/>
Principles of marketing / 
Philip Kotler, Gary Armstrong. 
 - 13th ed. 
 - Upper Saddle River, NJ. :  Pearson,  2010. 
 - 637 p. 
<br/><br/><label>ISBN: </label>0137006691 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing.