Biswas, N.N. <br/><br/>
Principles of telegraphy/ 
N.N. Biswas 
 - New York:  Asia Pub,  1964 
 - 185 p.;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> Rs. 12.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telegraph<br/>Telecommuniction<br/>Telegraph--Equipment and supplies<br/>Telegraph wire
<br/><br/><label>Dewey Class. No.: </label>621.382