Bates,Regis J; Gregory, Donald W. <br/><br/>
Voice and data communications handbook. 

 - 3 
 - New Delhi  Tata McGraw Hill Publishing Company Ltd  2000 
 - xxiv,998 
<br/><br/><label>ISBN: </label>70402000 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Networks
<br/><br/><label>Dewey Class. No.: </label>004.65 BATR