Mental retardation :  Knowledge to action. 

 - New Delhi:  World Health Organization ,  2001. 
 - 60 p.  ill.  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation.
<br/><br/><label>National Library of Medicine Call No.: </label>WM 300 M 2001