Sensory aids for the hearing impaired / 
edited by Harry Levitt, James M. Pickett, Robert A. Houde. 
 - New York :  IEEE Press,  c1980. 
 - ix, 566 p. :  ill. 
 - IEEE Press selected reprint series .
<br/><br/><label>ISBN: </label>0471084360 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hearing aids.<br/>Deaf--Means of communication.<br/>Communication devices for the disabled.