Burt, Cyril,  1883-1971, <br/><br/>
The causes and treatment of backwardness / 
Sir Cyril Burt, D.Sc., Hon. Litt.D., Hon. Ll.D. 
 - 3nd edition (revised ) 
 - London :  University of London Press,   1954 
 - 128 pages ;  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children with disabilities.
<br/><br/><label>Dewey Class. No.: </label>371.92  / BUC 1954