Ronayne,John <br/><br/>
Introduction to digital communications switching / 
Ronayne,John. 
 - 2nd ed. 
 - Allahbad:  Wheeler publishing,  1997. 
 - 238p;25cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>8185614660 
<br/><br/><label>Dewey Class. No.: </label>621.382 RON