Langenbeck, Bernhard,    <br/><br/>
Textbook of practical audiometry /  Bernhard Langenbeck 

 - London,  Edward Arnold ,  1965. 
 - 213 p.  21 cm. 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hearing.<br/>Deafness.
<br/><br/><label>LC Class. No.: </label>QP461  / .L25 
<br/><br/><label>Dewey Class. No.: </label>617.8075  LAN