Dunbar Robert E. <br/><br/>
Mental retardation / 
by Robert E. Dunbar. 
 - New York :  Franklin watts,  c1978. 
 - 63 p. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0531014916 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental deficiency-juvenile literature.
<br/><br/><label>LC Class. No.: </label>RC570  / .D85