Held, Gilbert,  1943- <br/><br/>
Digital networking and T-carrier multiplexing / 
Gilbert Held. 
 - Chichester, England ;  New York :  Wiley,  c1990. 
 - xii, 156 p. :  ill. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0471928003 :  $49.95 
<br/><br/><label>Source: </label>B-16372 
<br/><br/><label>LCCN: </label>90035077  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.<br/>Computer networks.<br/>Multiplexing.
<br/><br/><label>LC Class. No.: </label>TK5105  / .H44 1990 
<br/><br/><label>Dewey Class. No.: </label>621.382