Held, Gilbert, <br/><br/>
Digital networking and T-carrier multiplexing /  (Print Resources). 
By Gilbert Held. 
 - New York :  Wiley,  c1990. 
 - xii, 156 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes Index. 
<br/><br/><label>ISBN: </label>0471928003 
<br/><br/><label>Source: </label>B-16369 
<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