Vasudevan, N. <br/><br/>
Essentials of Environmental Science 

 - New Delhi  Narosa Publishing House  2006 
 - 294 
<br/><br/> 007840 
<br/><br/><label>Publisher. No.: </label> Panima Book Distributors 
<br/><br/><label>Subjects--Personal Names: </label> MSc Botany 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MSc Botany