Biswas N.N. <br/><br/>
Principles of Telegraphy 

 - Bombay  Media Promoters and Pub.(pvt)., Ltd.,Bombay  1964 
<br/><br/><label>ISBN: </label>0000024129 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Telegraphy<br/>Principles <br/>Telegraphy(621.382)
<br/><br/><label>Dewey Class. No.: </label>62.382