Kotler Philip. <br/><br/>
Principles Of Marketing. 

 - 5th ed. 
 -  New Jersey : Prentice Hall 1991. 
 - 711 P. 
 -  0 .
<br/><br/><br/>ENG 
<br/><br/><label>ISBN: </label>0136912478 (Hbk)