The development of cognitive processes /  
edited by Vernon Hamilton and Magdalen D. Vernon. 
 - London... [etc.] :   Academic Press,   [1976] 
 - 772 p. ;   24 cm. 
<br/><br/><label>ISBN: </label>0-12-321750-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Niños---Desarrollo.
<br/><br/><label>Universal Decimal Class. No.: </label>159.922.72