Dutton, Gordon. <br/><br/>
Mental handicap / 
(by) Gordon Dutton. 
 - London :  Butterworth & Co.,  1975 
 - 176 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0407000356 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation--Etiology.<br/>Mental retardation--Therapy.