N. D. Kaushika <br/><br/>
Energy,ecology and environment: a technological approach / 
Kaushika,N.D. 
 - New Delhi:  Capital Publishing Company,  2004. 
 - 177p;24cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>5541265628 
<br/><br/><label>Dewey Class. No.: </label>333.7 KAU