Indian Standards Institution <br/><br/>
Indian standard electrotechnical vocabulary part XXXI magnetism  electrotechnical standards sectional committee, ETDC 1 

 - Indian Standards Institution, New Delhi  1972 
 - 18 
<br/><br/><label>Dewey Class. No.: </label>IS:1885(pt.XXXI)-1971 538 I.S.I.