Bureau of Indian Standard <br/><br/>
IS : Part IV 1981 

 - 1st 
 - New Delhi  Bureau of Indian Standard  1981 
 - 19 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical Engineering
<br/><br/><label>Dewey Class. No.: </label>621.3  / BU-I