Systems of representation in children  development and use 
Edited by Chris and Alison F. Garton. 
 - New York  John Wiley & Sons  1993. 
 - 283 pages :    illustration, ;   24 cm. 
<br/><br/><label>ISBN: </label>0471925012 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental processes--In infancy and childhood