Powell, Guy <br/><br/>
ROI of social media :  how to improve the return on your social marketing investment / 
Guy Powell, Steven Groves, Jerry Dimos 
 - Singapore :  Wiley,  2011 
 - 289 p. :  ill. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780470827413 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet marketing<br/>Social media--Marketing<br/>Social media--Economic aspects<br/>Online social networks--Economic aspects<br/>Social marketing
<br/><br/><label>LC Class. No.: </label>HF 5415.1265  / P683R