Ellis, Norman R. <br/><br/>
Handbook Of Mental Deficiency :  Psychological Theory  And Research  

 - Newyork  McGrow-hill  1963 
 - xv, 722p.:  ill.:  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>150.1  / ELL