Reed, David <br/><br/>
Digital telecommunications 
David Reed 
 - Milton Keynes  Open University  1990 
 - 109 
 - Technology : a thrid level course   Block 7 (T322) .
<br/><br/><label>ISBN: </label>0749260491 
<br/><br/><label>Dewey Class. No.: </label>T322