Greenlees, A E. <br/><br/>
Amplification and distribution of sound / 

 - London :  Chapman and Hall,  1938. 
 - xiii, 254 p. :  ill. ;  21 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public address systems<br/>Electroacoustics<br/>Broadcast engineering
<br/><br/><label>Dewey Class. No.: </label>621.381  / GRE