Hagel, John. <br/><br/>
Net gain  expanding markets through virtual communities /  [Book] : 
John Hagel III, Arthur G. Armstrong. 
 - Boston :  Harvard Business School Press,  c1997. 
 - xv, 235 p. :  ill. ;  24 cm. 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>0875847595 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet marketing.<br/>Customer relations.
<br/><br/><label>Dewey Class. No.: </label>658.8 00285 467