O'Connor, N. <br/><br/>
The Social problem of mental deficiency  N. O'Connor and J. Tizard. 

 - London  Pergamon Press  1956 
 - viii, 182p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation Psychology pathological Mental illness.
<br/><br/><label>Dewey Class. No.: </label>616.89  / O17S