Biswas, Nripendra N. <br/><br/>
Principles of telegraphy 

 - Mumbai  Media Promoters & Publishers  1992 
 - x, 186  Pb  21cm 
<br/><br/><label>ISBN: </label>81-85099-04-9 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>384.1