Gay, Geri <br/><br/>
Activity-centered design : an ecological approach to designing smart tools and usable systems 

 - Cambridge, MA:  MIT Press,  2004 
 - xxi, 111 p. : ill. ; 23 cm 
<br/><br/><label>ISBN: </label>9780262072489 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human-computer interaction
<br/><br/><label>Dewey Class. No.: </label>004.019 GAY