Langley, Graham <br/><br/>
Telecommunications primer 
Graham Langley 
 -  c.1986 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems	--MS COM
<br/><br/><label>Dewey Class. No.: </label>621.38 LAN