Open University D324 <br/><br/>
Business Economics course : unit 9. Product differentiation and advertising  [Books]. 
Open University. 
 - Milton Keynes  Open University  1980 
 - Pages: 53 
<br/><br/><label>ISBN: </label>0335085733  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>business