National Extension <br/><br/>
Transmission Principles N III 
National Extension 
 - Cambridge  NEC PRINT  1992 
 - 60P 
<br/><br/> HB 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>1-85356-328-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data Transmission system
<br/><br/><label>Dewey Class. No.: </label>621.382  / NAT