Cole, Marion. , <br/><br/>
Introduction to telecommunications : voice, data, and the Internet  

 - New Delhi  Pearson Education  2002 
 - xvi, 608 p. :  ill.;  25 cm. 
<br/><br/> Includes index.  
<br/><br/><label>ISBN: </label>9788131705063 
<br/><br/><label>Dewey Class. No.: </label>621.382 COL