Allen, John <br/><br/>
Telecommunications / 
John Allen. 
 - Houndsmill, Basingstoke :  Macmillan,  1990. 
 - x, 117 p. :  ill., maps (some col,) 
 - Macmillan science 16-19 project. University of Bath .
<br/><br/><label>ISBN: </label>0333476271 
<br/><br/><label>LCCN: </label>92015052     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems.