World Radio TV Handbook 1991 / 
edited by Andrew G. Sennitt 
 - London  :  Billboard Publications ,  © 1991 . 
 - xxx, 750 p. :  illustrations ;  25 cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio broadcasting--Handbooks, manuals, etc.<br/> Television broadcasting-- Handbooks, manuals, etc.