Griffiths, J.M.. , <br/><br/>
ISDN explained :  worldwide network and applications technology / 
John M. Griffiths with Peter Adams... [and others]. 
 - 3rd ed 
<br/><br/><label>ISBN: </label>0471979058 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Integrared serveces digital networks.
<br/><br/><label>LC Class. No.: </label>TK5105.7   / .G75 1999