Ronayne, John <br/><br/>
Introduction to digital communications switching 

 - 2nd ed 
 - A H Wheeler, Allahabad  1997 
 - 238p ill. 
<br/><br/><label>ISBN: </label>81-85614-66-0 
<br/><br/><label>Dewey Class. No.: </label>621.381537 Ron