Piaget, Jean,  1896-1980 <br/><br/>
The psychology of intelligence 

 - London:  Routledge,  1950 
 - 202p. 
<br/><br/>p.191-193 
<br/><br/><label>ISBN: </label>0415254019 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INTELIGENCIA
<br/><br/><label>Dewey Class. No.: </label>153  / P579a