Mental retardation : meeting the challenge. 

 - 45p. 
 - (WHO offset publication ; no. 86). .
<br/><br/> Prepared in collaboration with the Joint Commission on International Aspects of Mental Retardation. 
<br/><br/><label>ISBN: </label>92-4-170086-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation<br/>Healthpolicy<br/>Mental health services