Singh,Arun Kumar <br/><br/>
Paryavaraneey arthasastru /   Vividh aayam . 

 - New Delhi :  Regal publication ,  2009. 
<br/><br/><br/>In hindi 
<br/><br/><label>ISBN: </label>9788184840322 
<br/><br/><label>Subjects--Index Terms: </label>Enviroment ;Biology