Stewart, W. Earl  1908- <br/><br/>
Magnetic recording techniques /  
W. Earl Stewart 
 - New York :   McGraw-Hill,   1958. 
 - 272 p. :   il. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GRABACIONES<br/>REPRODUCCION SONORA
<br/><br/><label>Universal Decimal Class. No.: </label>621.84