ROBERT K HELDMAN <br/><br/>
INFORMATION TELECOMMUNICATIONS: NETWORKS, PRODUCTS, AND SERVICES 

 -  MCGRAW HILL BOOK COMPANY  1990 
 - 393 
<br/><br/><label>ISBN: </label>0070280401 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELECTRONICS TELECOMMUNICATION 
<br/><br/><label>Dewey Class. No.: </label>621.384  / ROB