WORLD Health Organization <br/><br/>
Mental retardation 
/by World Health Organization 
 - New Delhi  World Health Organization  2001 
 - 60 p. 
<br/><br/><label>ISBN: </label>142635 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation
<br/><br/><label>Dewey Class. No.: </label>616.89  / WOR