Issacs Nathan. <br/><br/>
A brief introduction to piaget. 

 - ed. 
 - New york :  Schocken books,  1960. 
 - 121  p. ;    cm. 
<br/><br/>bibliography. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>education.