Biswas, Nripendra Nath <br/><br/>
Principles of carrier communication 
/by Nripendra Nath Biswas 
 - 1st 
 - Bombay  Media Promoters & Publishers pvt ltd  1970 
 - viii, 232p. 
<br/><br/><label>ISBN: </label>8165099189 
<br/><br/><label>Dewey Class. No.: </label>621.38  / BIS/P