Tittel, Ed. <br/><br/>
ISDN networking essentials 

 - Boston, Mass. :  AP Professional,  1996 
 - 305 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INTEGRATED SERVICES DIGITAL NETWORKS
<br/><br/><label>LC Class. No.: </label>TK5103.75  / T577I