Syed Riffat Ali    <br/><br/>
Digital switching systems :   Systems reliability and analysis /  
Syed Riffat Ali    
 - New York :  Mcgraw Hill,   1997.    
 - 219p. :  ill.;   24cm    
<br/><br/>Includes Index    
<br/><br/><label>ISBN: </label>007001069    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital telephone systems--reliability   <br/>System digital   <br/>Telephone switching systems,--reliability