Rao, P Ramakrishna <br/><br/>
Communication systems / 
P Ramakrishna Rao 
 - New Delhi :  McGraw-Hill,  c2013 
 - xvi, 951 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781259006852 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication