Handbook of hearing aid measurement : 1978 / 
United States veterans Administration. 
 - Washington, D.C. :  U.S. Govt printing office ,  1978 
 - 223p. :  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hearing aids--Testing--Periodicals
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Hearing aids--Testing
<br/><br/><label>Dewey Class. No.: </label>681.761