MENTAL deficiency the changing outlook 
/edited by Ann M.Clarke, Alan D.B.Clarke 
 - 4th ed. 
 - London  Methuen  1974 
 - xxiv, 834 p. 
<br/><br/> Includes reference and index.<br/> 
<br/><br/><label>ISBN: </label>041638160X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation
<br/><br/><label>Dewey Class. No.: </label>616.8588  / MEN