Schilling, Taub <br/><br/>
Principles of communication systems / 

 - 2nd ed 
 - New Delhi,  Tata McGraw Hill,  c2002. 
 - ill. ;  xvii, 759 p. ;  22.5 cm. 
<br/><br/><label>ISBN: </label>0074624563 
<br/><br/><label>LC Class. No.: </label>D3948 
<br/><br/><label>Dewey Class. No.: </label>621.38  / SCH