Energy conservation/ 
edited by Dr Parag Diwan & Dr Prasoom Dwivedi 
 - New Delhi:  Pentagon Energy Press,   2009. 
 - viii, 215p.:  ill.;  25cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788182743502 
<br/><br/><label>LC Class. No.: </label>HD9502  / E54 2009