TECHNICAL reference book 
IBA Technical Review 
 - London  I.B.A.  1977. 
 - 95 p.  ill. (some col.)  23 cm. 
<br/><br/><label>ISBN: </label>2010060211 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Broadcasting--Standards--Great Britain.<br/>Radio--Standards--Great Britain.<br/>Television--Standards--Great Britain.