Mental retardation  
[edited by] Mary Beirne-Smith, Richard F. Ittenbach, James R. Patton. 
 - 6th. 
 - Upper Saddle River, N.J. :  Merrill/Prentice Hall,  2002. 
 - xviii, 570 p. :  ill. ;  24 cm. 
<br/><br/> Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>9780130329905 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation.
<br/><br/><label>LC Class. No.: </label>DUCE RC570.M386