Enis BM <br/><br/>
Marketing classics : Selection of influential articles 
Enis Bm; Cox Kk 
 - 7 
 - United Kingdom  United Kingdom, Allyn & Bacon  1991 
 - 590p 
<br/><br/><label>ISBN: </label>0-205-12924-2 
<br/><br/><label>Source: </label>Textbook