Clarke, Ann M. <br/><br/>
Mental deficiency, the changing outlook  

 - 3d ed. 
 - New York :  Free Press,  1974. 
 - xx, 886 p. :  graphs ; 
<br/><br/><label>ISBN: </label>0416807208 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation.
<br/><br/><label>LC Class. No.: </label>MED RC570  / .C5