Srivastava, Smriti <br/><br/>
Environment and ecology / 

 - 1st ed 
 - New Delhi,  S.K Kataria and Sons,  c2010 
 - 294 p. ;  ill. ; 
<br/><br/><label>ISBN: </label>9789380027067 
<br/><br/><label>Dewey Class. No.: </label>577.05