Sinclair, Ian Robertson. <br/><br/>
Beginner's guide to audio / 
Ian R. Sinclair. 
 - London :  Newnes Technical Books,  c1977. 
 - 184 p. :  ill. ;  19 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0408002743 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual equipment.<br/>Sound--Equipment and supplies.
<br/><br/><label>Dewey Class. No.: </label>621.384136  / SIB 1977