Behaviour modification for the mentally handicapped 
edited by William Yule and Janet Carr 
 - London  Croom Helm  1980 
 - 298 p. ; 22 cm. 
<br/><br/><label>ISBN: </label>0856648418 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mentally handicapped children--Rehabilitation<br/>Behavior modification