BATES, R J <br/><br/>
VOICE AND DATA COMMUNICATIONS HANDBOOK 

 - 4 
 - NEW DELHI  Tata McGraw-Hill  2003 
 - xxviii+1074p., 24X18 
<br/><br/><label>ISBN: </label>0070472815 
<br/><br/><label>Dewey Class. No.: </label>621.38195404 B329