Kotler, Philip. <br/><br/>
Principles of marketing / 
Philip Kotler, Gary Armstrong. 
 - 5th ed. 
 - Englewood Cliffs, N.J. :  Prentice Hall,  c1991. 
 - xxiii, 711 p. :  ill.(some col.) ;  29 cm. 
 - The Prentice Hall series in marketing. .
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0136912478 (hbk.) 0137216890 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing.