Biswas, Nripendra N. <br/><br/>
Principles of telegraphy / 
by  Nripendra N. Biswas 
 -  Asia Publishing House,   1969. Bombay :  Asia Publishing House,   1964. 
<br/><br/><label>Subjects--Index Terms: </label>Electronics and communication engineering 
<br/><br/><label>Dewey Class. No.: </label>621.382