Intellectual development 
Pauline S. Sears, editor 
 - New York  John Wiley & Sons  1971 
 - xviii, 579 p. : ill. ; 23 cm. 
 - Readings in educational research .
<br/><br/><label>ISBN: </label>0471769754 
<br/><br/><label>LCCN: </label>73-146672 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition in children<br/>Intellect<br/>Problem solving<br/>Children--Language<br/>Cognition (Child psychology)