Borwick, John. <br/><br/>
Microphones :  technology and technique / 
John Borwick. 
 - London :  Focal Press,  1990 
 - xi, 241 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 234-235) and index. 
<br/><br/><label>ISBN: </label>0240512790 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microphone.
<br/><br/><label>LC Class. No.: </label>TK5986  / .B67 1990