Capel, Vivian. <br/><br/>
Public address systems / 
Vivian Capel. 
 - Oxford ;  Boston :  Focal Press,  1992. 
 - 250 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0750607327 
<br/><br/><label>LCCN: </label>92015277 
<br/><br/><label>Nat. Bib. No.: </label>GB93-2750 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public address systems.
<br/><br/><label>Subjects--Index Terms: </label>Sound reproduction equipment