World Health Organization  <br/><br/>
The mentally subnormal child.   

 - 
 - Geneva  W H O  1954 
 - 46 p.  24 cm. 
 - WHO Technical report series no.75   .
<br/><br/>  
<br/><br/>  Mental Retardation, Child 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child<br/>Mental Retardation
<br/><br/><label>Dewey Class. No.: </label>SERIALS  / WHO