Talley, David. <br/><br/>
Basic Carrier Telephony 

 - 3 
 - Bombay  CBS Publishers & Distributors  1987 
 - p.218 
<br/><br/><label>Subjects--Topical Terms: </label> Electrical Filters  Carrier Transmission  Broadband Carrier Systems 
<br/><br/><label>Dewey Class. No.: </label>621.385 T147