Connor, Frank Robert <br/><br/>
Signals 
by F.R. Connor 
 - London  Edward Arnold  1972 
 - 1 ,vii,110p ill 22cm Pbk 
<br/><br/> With answers 
<br/><br/>Index 
<br/><br/><label>ISBN: </label>0713132620 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication