Berg  J. M., International Association for the Scientific Study of Mental Deficiency. Congress (7th: 1985: New Delhi, India) , World Health Organization  <br/><br/>
Science and service in mental retardation    

 - 
 - London  Methuen  1986 
 - 475 p.  24 cm. 
 -   .
<br/><br/>  Based on: Proceedings of the Seventh Congress of the International Association for the Scientific Study of Mental Deficiency(IASSMD) Co-sponsored by the World Health Organization New Delhi, India, 24-28 March 1985 
<br/><br/>  Mental Retardation 
<br/><br/><label>ISBN: </label>0416406505 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental Retardation
<br/><br/><label>Dewey Class. No.: </label>WM300  / BER