Palanisamy, P.N. ...(et al.).         <br/><br/>
Environmental science  
P.N. Palanisamy ...(et al.) 
 - 
 - Delhi   Pearson education   2012 
 - 251pg. 
<br/><br/>Includes index and Bibliography and Glossasry 
<br/><br/><label>ISBN: </label>978 81 317 7325 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science    Environmental 
<br/><br/><label>Dewey Class. No.: </label>628/E55