Valiya, N. <br/><br/>
Jean piaget with love and understanding 

 - New Delhi:  Oxford & IBH Publishing Co. Pvt. Ltd,  1991. 
 - xxviii,453p.;  21cm 
<br/><br/><label>ISBN: </label>8120404920 
<br/><br/><label>Dewey Class. No.: </label>121  / VAI