Powell, Guy. <br/><br/>
Role of Social Media : How to Improve the Return on your Social Marketing Investment 

 - Singapore  John Wiley and Sons  2011 
 - xxvii, 289p., ill., 23cm. 
<br/><br/> Includes: Index 
<br/><br/><label>ISBN: </label>978-0-470-82741-3 
<br/><br/><label>Dewey Class. No.: </label>658.802 POW