Biswas, Nripendra N. <br/><br/>
Principles of Carrier Communication 
Nripendra N. Biswas, 
 - Bombay  Asia Publishing  1970 
 - viii, 232 p.  
<br/><br/> Includes Appendix and Index 
<br/><br/><label>ISBN: </label>0-210-22711-7 
<br/><br/><label>Dewey Class. No.: </label>TBB D66, 4  / LO;