Gupta S. <br/><br/>
Telegraphy 

 - New Delhi  Khanna Publications,New Delhi.  1991 
<br/><br/><label>ISBN: </label>0000022445 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telegraphy<br/>Telegraphy(621.382)
<br/><br/><label>Dewey Class. No.: </label>62.382