Mani Shyamala <br/><br/>
Environmental science: Class- 12 

 - New Delhi, India  Foundation Books  2006 
 - viii, 326p. 
<br/><br/><br/>Gifted by Prof. Anita Rampal 
<br/><br/><label>ISBN: </label>0-416-40300-X 
<br/><br/><label>Source: </label>Textual