Piaget,Jean <br/><br/>
The language and thought of the child / 
Piaget,Jean. 
 - 2nd ed 
 - New york:  Roultdge,  1952. 
 - xxiii,287p;21cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0415045304 
<br/><br/><label>Dewey Class. No.: </label>400 PIA