Fourth Helen Keller World Conference on Deaf-Blindness :  Stockholm 1989 / 
Fourth Helen Keller World Conference Stockholm 1989. 
 - Stockholm :  Fourth Helen Keller World Conference,  1989. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>kuurosokeat<br/>kuurosokeus<br/>konferenssit