Jyoti Sinha <br/><br/>
Environmental science 

 - 2 
 - New Delhi  Galgotia Publications  2006 
 - xv, 270p.   
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9788175156326 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science