Piaget, Jean.,  author. <br/><br/>
The psychology of intelligence/ 
Jean Piaget. 
 - Abingdon, Oxon :  Routledge,   1950. 
 - xi, 202 pages ;  20 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9780415254014 (paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intellect.