Elgerd, Olle I. <br/><br/>
Electric energy systems theory : an introduction 
<label>/ by </label> Elgerd, Olle I. 
 - New Delhi  Tata McGraw-Hill Publishing Company Limited  1973 (1977) 
 - xviii, 564p.  ill.  21 cm. 
<br/><br/><label>Dewey Class. No.: </label>621.3  / ELG