Local telecommunications 2 :  into the digital era / 
edited by J.M. Griffiths. 
 - London :  Peter Peregrinus,  1986. 
 - viii, 293 p. :  ill. 
 - IEE Telecommunications series ;  17 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems--Great Britain.