Piaget, Jean. <br/><br/>
The psychology of intellignce / 
Jean Piaget. 
 - New Jersey :  Littlefield, Adams,  1960. 
 - viii,182 p. :  ill. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intelligence.<br/>Children--Teaching tests.
<br/><br/><label>Dewey Class. No.: </label>153.9