Hopkins, Gerald L. <br/><br/>
(The) ISDN literacy book / 
Gerald L. Hopkins. 
 -  Addison-Wesley  1995. 
<br/><br/>6899 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Integrated services digital networks.
<br/><br/><label>LC Class. No.: </label>TK5103.75  / Hop.