Cockerill,Helen  <br/><br/>
Communicating without speech :   practical augmentative & alternative communication 

 - London :  Distributed, Cambridge University Press,   2001. 
 - 	viii, 185 p 
<br/><br/> Include index 
<br/><br/><label>ISBN: </label>1898683255 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Subjects--Geographic Terms: </label>