Piaget Jean <br/><br/>
Child's conception of movement and speed 

 - London, UK  Routledge and Kegan Paul  1970 
 - xi,306p 
<br/><br/><label>ISBN: </label>0-7100-6491-8 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology