Griffiths, J. M.  <br/><br/>
ISDN explained :  worldwide network and applications technology /  [Book]. 
John Griffiths with Peter Adams ... [et al.].  
 - 2nd ed. 
 - Chichester ;   New York :   Wiley,   1992. 
 - xiv, 239 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0471934801 (hbk.) 
<br/><br/><label>LCCN: </label>92012119 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Integrated services digital networks.
<br/><br/><label>LC Class. No.: </label>TK5103.7 G75 1992