O`Connor , N.. <br/><br/>
The Social Problem of Mental Deficiency /  Textual Documents 
N.O`Connor & J.Tizard. 
 - 1st ed. / 
 - London :  Pergamon Press ,  1956. 
 - vii,182p. :  ill ;  22cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Social Psychology Mental Deficiency G-Sociology 
<br/><br/><label>Dewey Class. No.: </label>301.15  / O`C 5 So