Stahl, Gerry <br/><br/>
Group cognition :  computer support for building collaborative knowledge/ 
Gery Stahl 
 - Cambridge, Mass. :  The MIT press,  c 2006 
 - x, 510 p. :  ill., facsims;  24 cm. 
 - Acting with technology .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0262195399  $ 45.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer-assisted instruction<br/>Computer networks
<br/><br/><label>Dewey Class. No.: </label>371.334