Van Witsen, Betty- <br/><br/>
Teaching children with severe behavior/communication disorders/ 
Betty Van Witsen. 
 - New York  Teachers College Press  1977 
 - xii, 147 p. :   ill. ;   29 cm. 
<br/><br/>Bibliography : p. 144-147. 
<br/><br/><label>ISBN: </label>0807724653 
<br/><br/><label>LCCN: </label>77-010483 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mentally handicapped children--Education<br/>Mentally ill children--Education