Chalmers, Jim <br/><br/>
Pocket telecommunication  the essentials of telecommunications from A to Z 

 - London  Penguin Books Ltd  1995 
 - vi,193p.  
<br/><br/><label>ISBN: </label>9780241135396  
<br/><br/><label>Dewey Class. No.: </label>384 CHA(Ref.)