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

 - New Delhi  Asian Publishing House, NewDelhi  1964 
<br/><br/><label>ISBN: </label>0000002343 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civil Engineering<br/>Principles  Telegraphy
<br/><br/><label>Dewey Class. No.: </label>621.382