Hancock, John C <br/><br/>
An introduction to the principles of communication theory / 

 - New Delhi,  Tata McGraw Hill,  c1989. 
 - ill. ;  253p. ;  24 cm. 
<br/><br/><label>ISBN: </label>007099341 
<br/><br/><label>LC Class. No.: </label>2479 
<br/><br/><label>Dewey Class. No.: </label>621.38015