Vertegaal, R. <br/><br/>
Look who's talking to whom:  mediating joint attention in multiparty communication & collaboration/ 
Roel Vertegaal 
 - Netherlands:  Cognitive ergonomics department,  1998. 
 - ix, 183p.:  ill.;  24 cm. 
<br/><br/> Includes appendix and references. 
<br/><br/><label>ISBN: </label>9036511747 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>LC Class. No.: </label>DUCE HM851.V28