Biswas, Nripendra N.  <br/><br/>
Principles of telegraphy 
Nripendra N. Biswas 
 - Bombay  Media Promoters & Publishers Pvt. Ltd.  1964 
 - x, 185p. 
<br/><br/><label>ISBN: </label>0862492459 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telegraph
<br/><br/><label>Dewey Class. No.: </label>621.382 B545p