Summers, Charles K. <br/><br/>
ISDN implementor's guide 

 - London  Mcgraw-hill  1995 
 - x,413p. 
<br/><br/><label>ISBN: </label>0070694168 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer network<br/>Networking
<br/><br/><label>Dewey Class. No.: </label>004.6  / SUM