Gayford, M. L. <br/><br/>
Electroacoustics: microphones, earphones and loudspeakers 

 - London  Newnes-Butterworths  1970 
 - 289p.  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>electroacoustic tranaducers
<br/><br/><label>LC Class. No.: </label>TK5981.G31