Principles of marketing/ 
Kotler, Philip. 
 - 4th ed. 
 -  Prentice Hall, Inc.  1989 
 - xxiv, 660 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71084514-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing.
<br/><br/><label>Dewey Class. No.: </label>658.8 K84p 1989