Gregory, Donald W. <br/><br/>
Voice and data communications handbook 

 - Fourth Edition 
 - New Delhi  Tata McGraw-Hill  2001 
 - 1074 p 
<br/><br/><label>ISBN: </label>9780070472815 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication Engineering
<br/><br/><label>LC Class. No.: </label>621.382 BAT 2001 
<br/><br/><label>Dewey Class. No.: </label>621.382 BAT 2001 
<br/><br/><label>National Library of Medicine Call No.: </label>621.382 BAT 2001