Mental retardation / 
[edited by] Mary Beirne-Smith, Richard F. Ittenbach, James R. Patton 
 - 6th ed. 
 - Upper Saddle River, N. J. :  Merrill Prenctice Hall,  2002 
 - xviii, 570 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0130329908  RM301.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation<br/>Education of mentally retarded
<br/><br/><label>National Library of Medicine Call No.: </label>WM300