Smale, PH. <br/><br/>
Telecommunication systems 1 :  a textbook covering the Level 1 syllabus of the Technician Education Council / 

 - London :  Pitman Pub.  1978. 
 - (10), 109 p. :  ill., maps ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0273011235 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems.