Clarke, A D B <br/><br/>
Recent advances in the study of subnormality /  
A D B Clarke 
 - Harley :   National Association for Mental Health,   1975. 
 - 87 p. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intellectual disability
<br/><br/><label>Dewey Class. No.: </label>NS 157.8  / CLA C