Kotler, Philip. <br/><br/>
Principles of marketing / 
Philip Kotle and Gary Armstrong. 
 - 6th ed. 
 - Englewood Cliffs, N.J. :  Prentice Hall,  c1994. 
 - xx, 692 p. :  col. ill. ;  28 cm. 
 - The Prentice Hall series in marketing. .
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0130980390 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing.