Mueller, H. Gustav. <br/><br/>
Modern hearing aids : 

 - San Diego, CA :  Plural Publishing, Inc.,  [2014] 
 - viii, 462 pages :  illustrations ; 
<br/><br/><label>ISBN: </label>9781597561389 (alk. paper) 159756138X (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audiology
<br/><br/><label>Dewey Class. No.: </label>617.89  / MUE