Psychology of exceptional children and youth / 
Edited by William  M Cruickshank. 
 - 3rd ed. 
 - Boston :  Prentice-Hall,  c1971. 
 - 624  p. :  ill. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology.
<br/><br/><label>LC Class. No.: </label>BF723  / .C7