N. N. Biswas <br/><br/>
Principles of Telephony 
by N. N. Biswas 
 - Bangalore  Radiant Books  1994 
 - 138 
<br/><br/><label>ISBN: </label>818527309X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECE
<br/><br/><label>Dewey Class. No.: </label>105.23