Renton, Robert Norman <br/><br/>
Data telecommunication / 
by R. N. Renton 
 - London :  Pitman Pub,  1973 
 - viii, 227 p.  :  ill.  ;  25 cm. 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0273317733 
<br/><br/><label>LCCN: </label>74-156114 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems