Issues in the developmental approach to metal retardation / 
edited by Robert M. Hodapp, Jacob A. Burack and Edward Zigler. 
 - Cambridge :  Cambridge University Press,  1990. 
 - 336 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0521346193 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation--Etiology.<br/>Child development.