Bell Telephone magazine 

 - New York :  Bell System,  1941- 
 - v. 
<br/><br/><label>ISSN: </label>0096-8692 
 = Bell Telephone magazine 
 = Bell Teleph. mag. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMUNICACION<br/>TELECOMUNICACIONES
<br/><br/><label>Universal Decimal Class. No.: </label>621.39