B.L.  THERAJA  A.K.THERAJA <br/><br/>
A TEXTBOOK OF ELECTRICAL TECHNOLOGY VOL 1 

 - NEW DELHI  S.CHAND & COMPANY LTD  1959 
<br/><br/><label>ISBN: </label>81-219-0290-8 
<br/><br/><label>Dewey Class. No.: </label>621.31  / THE/A